hi everyone

welcome to my youtube channel

first of all i want to thank all of you

who watch my youtube videos

and i definitely appreciate all of the

good comments that you post

it's always good to know that these

videos are helping you to succeed in

school

now for those of you who are new to my

channel

feel free to check out my playlist on

algebra trig

calculus

chemistry physics and even organic

chemistry

you should be able to see the links

posted on this video if you're using the

desktop computer or laptop

if you're using your cell phone or

tablet

you may not see those links so

just check out my channel for those

playlists

and you can find

almost any video that you need

so thanks again for all of your support

and have a good day

The Organic Chemistry Tutor Channel

This video is the trailer of my organic chemistry tutor channel.


in this video we're going to talk about

the law of reflection

so what exactly is that what is its

state

the law of reflection states that the

angle of incidence

is equal to the angle of reflection so

as an example let's say if we have a

flat surface

and let's say this is the normal line

which is perpendicular to the surface

and let's say if we have a light ray

that strikes the surface

at an angle of incidence of 30 degrees

the angle of incidence is between the

light ray and the normal line

according to the law of reflection

the ray is going to bounce back at the

same angle

so the angle of reflection which is also

between the normal line and the light

ray that's going to be 30 degrees

and so that's the law of reflection

now keep in mind these two angles are

complementary

the normal line always forms a right

angle with the surface

so this angle is 60 and this angle is

now let's work on this problem a light

ray strikes the mirror at an angle of 30

degrees from the horizontal

what is the angle x where the ray leaves

the second mirror

so here this is the first mirror and

this is the second mirror

so this is the incident ray

and let's start by calculating the angle

of incidence

so we know that the normal line makes a

90 degree angle with

the surface

so these two angles add up to 90.

so 90 minus 30 is 60

and so that's the angle of incidence

and based on the law of reflection the

of reflection

so the angle of reflection for the first

mirror is also 60

which means this is 30.

now the three angles of a triangle

must add to 180

so what is this missing angle which

we'll call y

well 30 plus 130

plus y

is equal to 180

now 30 plus 130 is 160

and so now we need to subtract both

sides

by 160

so 180 minus 160 is 20

and so that's the missing angle here

so the angle of incidence for the second

mirror is going to be 90 minus 20 which

is 70.

and the angle of reflection for the

second row is 70 as well

which means x is 90 minus 70 so x

is 20 degrees

so that's the angle

that

the reflected ray

leaves the second mirror

so the angle of reflection for the

second mirror is 70 but the angle at

which it leaves the mirror is 20 which

is what we're looking for

you

Law of Reflection - Geometric Optics - Physics

This physics video tutorial provides a basic introduction into the law of reflection.  The law of reflection states that the angle of incidence is equal to the angle of reflection.  This video on optics contain 1 practice problem associated with the law of reflection.

RC Circuits - Capacitors & Resistors:
https://www.youtube.com/watch?v=PLQrPqYlPmI

RL Circuits - Inductors & Resistors:
https://www.youtube.com/watch?v=RR0sQeDAxgk

Inductive Reactance:
https://www.youtube.com/watch?v=5uftqyvUKSc

Capacitive Reactance:
https://www.youtube.com/watch?v=ZOn0L42cyFE

Impedance:
https://www.youtube.com/watch?v=8D9XPDNY3Mk

_____________________________
Series RLC Circuits:
https://www.youtube.com/watch?v=2GvqQvohP2k

Parallel RLC Circuits:
https://www.youtube.com/watch?v=8MMzeeHNjIw

Resonant Frequency of LC Circuits:
https://www.youtube.com/watch?v=r72f0ZZusT0

AC Circuits - Review:
https://www.youtube.com/watch?v=tcP9c6SnGQs

Maxwell's Equations & EM Waves:
https://www.youtube.com/watch?v=mOEFTX9DAEw

____________________________
Law of Reflection - Geometric Optics:
https://www.youtube.com/watch?v=yscrBkfPRyc

The Mirror Equation:
https://www.youtube.com/watch?v=efPZ5uSDeuI

Refraction of Light:
https://www.youtube.com/watch?v=ON1QGqB6vxg

Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


go for it this one's grenard reagent

beautiful I love this one we reduce down

the carbonal group to an alcohol and we

add this group at the beginning

done

Converting a Ketone into an Alcohol Using a Grignard Reaction #organicchemistry

💯 Start Understanding Ochem Today for Free! 🎉
https://chemmunity.info/youtube

💁♀ HI I'M MELISSA MARIBEL
I help students pass Chemistry and Organic Chemistry. I used to struggle with this subject, so when I finally graduated with a bachelor's degree in Chemistry, I became a tutor so that you wouldn't have to struggle like I did. I know that with the right help, YOU CAN LEARN ANYTHING!


in this lesson

we're going to talk about evaluating

logs using the change of base formula

so we know that log base 2 of 16

is equal to 4 because 2 to the fourth

power is 16.

but let's say if you don't know that

here's how you can use the change of

base formula to get the same answer

but here's the formula log

base a of b

is equal to log of b

divided by log of a

and the reason why it's called the

change of base formula is because

you can change the base

originally the base is a

but you can make it into any new base

we'll call it c

c could be 5 8 12.

as long as these two are the same it

doesn't really matter what c is

the equation will work

so log base 2 of 16

you can type it in your calculator as

log 16

divided by log 2.

now when you type it in your calculator

like this

it's automatically going to make it base

so regardless of whatever the new base

is

you will still get the right answer so

go ahead and type that in log 16 divided

by log 2

and you'll see that is equal to 4.

try these two examples

use the change of base formula

to evaluate the two logs

so let's divide log 243

by

log 3.

the calculator will give you 5.

and it makes sense because 3 to the

fifth power is 243

next we have log of 343

divided by log 7.

and this

is equal to three

so that's how you can use the change of

base formula in order to evaluate

logs

you

Change of Base Formula - Logarithms

This algebra video tutorial explains how to use the change of base formula to evaluate logarithms.

Logarithms - Free Formula Sheet:       https://bit.ly/4fEwqv0

_______________________________
Logarithms - The Easy Way!
https://www.youtube.com/watch?v=kqVpPSzkTYA

Log to Exponential Form:
https://www.youtube.com/watch?v=f0C1KL7GkqY

Change of Base Formula:
https://www.youtube.com/watch?v=FFm-zaFW_X4

Change of Base Log Problem:
https://www.youtube.com/watch?v=p7hD9VdXv9U

Properties of Logarithms:
https://www.youtube.com/watch?v=Jtv9Lnf7Zw8

____________________________________
Expanding Logarithmic Expressions:
https://www.youtube.com/watch?v=OIz-5MyJA3g

Condensing Logarithmic Expressions:
https://www.youtube.com/watch?v=luRrOlsB4cY

Natural Logarithms:
https://www.youtube.com/watch?v=daUlTsnCNRQ

Solving Exponential Equations:
https://www.youtube.com/watch?v=9tutJ5xrRwg

Exponential Equations - Quadratic Form:
https://www.youtube.com/watch?v=yNgmVu0R_T8

_______________________________________
Solving Logarithmic Equations:
https://www.youtube.com/watch?v=fnhFneOz6n8

Graphing Logarithmic Functions:
https://www.youtube.com/watch?v=-nptxS9rZNA

Graphing Exponential Functions:
https://www.youtube.com/watch?v=DASfP8KAyvs

Compound Interest Word Problems:
https://www.youtube.com/watch?v=Hn0eLcOSQGw

Logarithms Practice Problems:
https://www.youtube.com/watch?v=7DVbQKI600k

_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


now let's work on some more examples

graphing quadratic functions in standard

form

now we did one example

using the data table

and there are some other things that you

may need to find such as the x-intercept

and the y-intercept

but i think it's still good to like put

that information in the form of a data

table it's simply helpful

the first thing we should do is find a

vertex

which is

negative b over

2a b is negative 4.

a is the number in front of x squared so

a is 1.

so this is going to be 2 times 1. so

that's going to be positive 4 divided by

so the vertex

has an x value of 2.

let's just put that in the data table

now let's find a y value when x is 2.

so two squared minus four times two plus

three

so that's four minus eight plus three

four minus eight is negative four plus

three that's negative one

so that's the y value of the vertex

now let's find the x-intercepts in order

to find the x-intercepts

set y equal to zero and factor

two numbers that multiply to three but

add to negative four

are negative one and negative three

so it's going to be x minus one

and x minus three therefore the

x-intercepts are one

and three

which means x is one y is zero

so we have the points one zero and three

zero

now let's find the y intercept

to do that replace x with zero

so you can see that it's going to be 3.

so we have the point 0

comma 3.

notice that these two are the same

because they're equidistant from the

vertex

so if we have the .03 then when x is 4 y

must be 3 as well

because 0 and 4 are equidistant from the

vertex

so now we have everything that we need

in order to graph this function

so let's plot it

starting with the vertex it's 2 negative

and then the x-intercepts are 3 0

and 1 0 that's where it touches the

x-axis the y-intercept is 0 3 that's

where the curve touches the y-axis and

we have the 0.43

and so

the graph

is going to look something like this

we can see that the axis of symmetry

is x is equal to 2

the x coordinate of the vertex

the minimum value

is negative one

and so the range

will vary from negative one to infinity

and the domain is always going to be the

same

all real numbers

and so that's it for

graphing functions

in standard form

Graphing Quadratic Functions In Standard Form Using X & Y Intercepts | Algebra

This algebra video tutorial explains how to graph quadratic functions in standard form using x and y intercepts and a data table.  it explains how to identify the axis of symmetry and the coordinates of the vertex using a simple process as well as the domain and range of the function.

Quadratic Equations - Free Formula Sheet:
https://bit.ly/3WZ8v1Z

______________________________
How To Solve Simple Quadratic Equations:
https://www.youtube.com/watch?v=-KWsS2FZVTA

Solving Quadratic Equations by Factoring:
https://www.youtube.com/watch?v=qeByhTF8WEw

How To Factor Difficult Quadratic Equations:
https://www.youtube.com/watch?v=VG1luiL_INQ

Solving QE By Completing the Square:
https://www.youtube.com/watch?v=WOb25i8FBBw

Solving Equations In Quadratic Form:
https://www.youtube.com/watch?v=eWjixwGK3YM

Sum and Products - Quadratic Equations:
https://www.youtube.com/watch?v=kBSj35rik8w

_______________________________________
How To Calculate the Discriminant:
https://www.youtube.com/watch?v=6fU9ZgwbU74

Standard Form to Vertex Form:
https://www.youtube.com/watch?v=pf9LkX8hpTQ

Graphing Quadratic Functions:
https://www.youtube.com/watch?v=H8OQtxSRe_k

How To Find the Axis of Symmetry:
https://www.youtube.com/watch?v=tyzd4VujaqY

Graphing Quadratic Functions - Vertex Form:
https://www.youtube.com/watch?v=OHH7fX_M8Ns

Graphing QF in Standard Form:
https://www.youtube.com/watch?v=uYNKJWFYh7k

___________________________________________
Writing Quadratic Equations:
https://www.youtube.com/watch?v=SB6eCyG4GEA

Maximum and Minimum Word Problems:
https://www.youtube.com/watch?v=d5YktqR-4FU

Systems of Quadratic Equations:
https://www.youtube.com/watch?v=rq5AjFs95qw

Systems of Nonlinear Equations:
https://www.youtube.com/watch?v=JPdLEaxlnZQ

Quadratic Inequalities:
https://www.youtube.com/watch?v=_gWjLKsFOPE

Quadratic Equations - Test Review:
https://www.youtube.com/watch?v=fFFA7Q4eVuY

___________________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


what is equity

have you ever wondered the answer to

that question what is it perhaps in a

conversation you heard someone say yeah

man i have a 150k in equity

what does that even

mean well in this video we're going to

talk about that

so let's say you decide to buy a house

for 300 000

now we're going to keep this discussion

simple we're not going to go into all of

the the details and the fees of owning a

home but let's say that's the current

value of your home

and you took out a loan or mortgage for

three hundred thousand to buy the home

equity

is the difference

between

assets

and liabilities

your home is an asset because

you can go to the market and sell it in

exchange for cash it has a value

the loan is a liability because it's

something you have to pay back

so right now your equity is zero

because these two are the same

but let's say in five years

the value of your home appreciates

to four hundred thousand

so that means that you've gained a

hundred thousand dollars

in appreciation or in value

now in the course of those five years

let's say that you pay down the mortgage

from three hundred thousand

to two hundred ten thousand

how much equity do you now have in your

home

as was mentioned before

equity

is the difference between assets and

liabilities

you have an asset that is four hundred

thousand dollars in value

your liability is two hundred ten

thousand

equity will be the difference between

those two values

so four hundred thousand minus two

hundred ten thousand

will give us

an equity of a hundred ninety thousand

so that's how much equity you would have

in your home so what does that even mean

well it means that if you liquidate your

asset if you sell your home for four

hundred thousand

and

pay all of your mortgage for two hundred

ten thousand

this is how much cash you're going to

have

at the end of those transactions

so equity tells you how much value you

have in your home after paying off all

of your liabilities

that's the basic concept of it so

hopefully this video helped you to

understand the concept of equity as it

relates to your home

Personal Finance - Assets, Liabilities, & Equity

This video explains what it means to have equity in your home.  Equity is the difference between assets and liabilities.

Liquidity Ratios:
https://www.youtube.com/watch?v=bmZVPks4yQg

Assets, Liabilities, & Equity:
https://www.youtube.com/watch?v=_-lVFKG5_08

The Short Ratio:
https://www.youtube.com/watch?v=9kQQ4iEdxiU

Debt to Equity Ratio:
https://www.youtube.com/watch?v=enhdH7Tl5bY

Time Value of Money:
https://www.youtube.com/watch?v=cy4PiY5ERTI

_____________________________
Future Value of Annuity:
https://www.youtube.com/watch?v=bcuXY8WkjF4

More Examples on Annuities:
https://www.youtube.com/watch?v=bIIndFa0RCM

How To Calculate The Monthly Mortgage Payment:
https://www.youtube.com/watch?v=6bLg_Ex0A-4

The Present Value of an Annuity:
https://www.youtube.com/watch?v=RU-osjAs6hE

Net Present Value & Internal Rate of Return:
https://www.youtube.com/watch?v=pj5wN7TUdOY

____________________________
Annual Percentage Yield:
https://www.youtube.com/watch?v=qGR3kMH0TX0

Amortization Loan Formula:
https://www.youtube.com/watch?v=lkNJvsy0qU8

Amortization Table:
https://www.youtube.com/watch?v=QZfMW203v4U

Rule of 72:
https://www.youtube.com/watch?v=91nnN2XwTMg

Bond Yields:
https://www.youtube.com/watch?v=OnkmoSTeHuc


in this lesson we're going to talk about

how to calculate the volume

of a cube

so let's say the side length is

seven

what is the volume of this cube

now we know that the volume of a

rectangular prism is the length times

the width times the height

however

for a cube

all sides are the same

so this is x x and x

so it turns out that the volume of the

cube is just x cubed so in this example

is going to be seven to the third power

or seven times seven times seven

seven to the third power is 343.

so this was seven inches this would be

cubic inches

and that's all you need to do in order

to calculate the volume of a cube

you

Volume of a Cube

This geometry video tutorial explains how to calculate the volume of a cube.

3D Shapes - Faces, Edges, & Vertices:     https://www.youtube.com/watch?v=Wmwe1fmR1SM

Rectangular Prism - Volume:
https://www.youtube.com/watch?v=rNIKbT0-ywU

Rectangular Prism - Surface Area:
https://www.youtube.com/watch?v=BsAQbJyEF9g

Rectangular Prism - Diagonal Length:
https://www.youtube.com/watch?v=iO7vb3HLHqU

Triangular Prism - Volume:
https://www.youtube.com/watch?v=HfDHYFgTbxk

Triangular Prism - Surface Area:
https://www.youtube.com/watch?v=152tLGR0lms

Triangular Prism - Lateral Area:
https://www.youtube.com/watch?v=PljECBkHQpg

_______________________________
Hexagonal Prism - Surface Area:
https://www.youtube.com/watch?v=JKyF2r-bIC0

Cube - Volume:
https://www.youtube.com/watch?v=bpRsuccb6dI

Cube - Surface Area:
https://www.youtube.com/watch?v=ZMhkvFwLOR4

Cube - Diagonal Length:
https://www.youtube.com/watch?v=wr3EvQZzoRI

Pyramid - Volume:
https://www.youtube.com/watch?v=8onylJ72ZPQ

Pyramid - Surface Area:
https://www.youtube.com/watch?v=2g6QuOizzac

________________________________
Square Pyramids - Volume:
https://www.youtube.com/watch?v=x8wEnG4GURQ

Cylinder - Surface Area:
https://www.youtube.com/watch?v=LdztqPczYiI

Sphere - Volume:
https://www.youtube.com/watch?v=eAwc8rwMRnI

Sphere - Surface Area:
https://www.youtube.com/watch?v=aXEcU-M_qNA

Cone - Volume:
https://www.youtube.com/watch?v=LypmeZ0tnJA

Cone - Surface Area:
https://www.youtube.com/watch?v=MeWoIcQNqRA

_________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/


number 84 the chemical structure of

inositol formerly known as the vitamin

B8 is shown below

draw a chair conformation of this

molecule

so let's

draw it this way

now let's call this

carbon one two three four five six so

this is going to be one

I'm going to put 2 here

and then 3 4

so on carbon one we have the o h group

it's on the wedge

it's coming out of the page so

let's put the first group in the axial

up position

now on carbon two

this second oh is on the wedge as well

so it's going to be going up

so this has to be equatorial up

there's only two options equatorial up

or axial down

and these two have to be on the same

side either they're both up or both down

now in carbon 3 we have an oh going into

the page

so that's going to be going in the

downward Direction so it's not going to

be axial up but it has to be equatorial

down

now let's move on to carbon 4.

so this is out of the page

and that's going to be up the same as

that one

so either it's axial down or equatorial

up

we're going to go with equatorial up

now for carbon 5 it's down

it's going

into the page so it's either axial down

or equatorial down

this is going to be

equatorial down

now this one is up

so either we have axial down or

equatorial up

so this is going to be equatorial up

so notice that

five of the six hydroxyl groups are in

the equatorial position

so the chair conformation this

particular chair conformation is

relatively stable

now if we were to take this o h

and put it in this Direction all the

other positions will be flipped we would

have five hydroxyl groups in the axle

position

rather than what we see here so this

particular Shear conformation is more

stable than the other one that we can

draw

so that's the chair conformation for

inositol

vitamin B8 or what used to be vitamin B8

How To Draw The Chair Conformation of Inositol

This organic chemistry video tutorial explains how to draw the chair conformation of inositol.

Full 7 Hour Organic Chemistry Exam 1 Video:               https://www.patreon.com/MathScienceTutor

Direct Link To The Full Video - Part 1:
https://bit.ly/3R3KPFi

Direct Link to The Full Video - Part 2:
https://bit.ly/3XwUg2u

PDF Worksheet - 90 Test Questions:
https://bit.ly/3WFBwMU

__________________________________
Exam 1 - Part 1 on YouTube:
https://www.youtube.com/watch?v=WfXDSOZwYyI

Exam 1 - Part 2 on YouTube:
https://www.youtube.com/watch?v=8TKVg0t6jSc

Organic Chemistry Exam 1 Playlist:
https://bit.ly/3kJnNXU

Organic Chemistry PDF Worksheets:
https://www.video-tutor.net/orgo-chem.html


identify which one is the acid which one

is the base

good yeah why well this is a carboxylic

acid right here yep it's added in the

name this is a negative charge perfect

and and this to basically what an acid

is specifically the bronson-lowry acid

we know that this is going to donate a

proton so it has to have a proton so if

it's going to proton again h plus right

hydrogen so it has to have a hydrogen to

give this one I know it's a base because

it doesn't have a hydrogen to give it

wants to accept a proton so that's why

yes bases tend to be negative acids

either have proton or are positively

charged

Identifying the acid and base in an acid-base reaction #acidsandbases #organicchemistry


this alkane kind of looks like an

octopus

the first step to naming is to find the

parent chain and number the parent

chains so the substituents are at the

lowest numbered position there's seven

carbons in the parent chain so the

ending of the name will be heptane next

means to find the substituents there's

one methyl here at position two and one

at position six and there's an ethyl

group at position four the ethyl comes

before methyl in the name because e

comes before m in the alphabet the final

name is four ethyl 2 6 dimethylheptane

thanks for watching don't forget to like

and also subscribe to the chemistry kit

for more

Alkane Or Octopus? Organic Chemistry Question #chemistry #shorts

This is a question going over how to name alkanes in organic chemistry.

Subscribe for more chemistry tutor help!


okemtutor.org question of the day

[Music]

this question we're going to do

nitration it's with hno3 h2so4 and the

Benzene ring so first let's draw the

Lewis structure of our hno3

you can see that we have a negative sign

on the oxygen neutral oxygen with the

double bond o and an o h with a couple

lone pairs next let's draw our h2so4

it's just a 4 is electrophilic so we can

go attack it

we're going to go for the proton and

redraw our hno3 which now is going to

have an oh2 plus so that's going to be

our leaving group

now that we have our leaving group and

we have our HS of four minus we can have

the H2O leave and that's going to leave

behind an NO2 that's positively charged

onwards we can see that we have our NO2

that's positively charged the nitrogen

is electron

Ochem tutor explains benzene  #chem #ochem #ucdavis #chemistry #premed #mcat #orgo #organicchemistry


we're going to figure out how many grams

of carbon dioxide are produced when 25

grams of butane burn so I have my

balanced equation here I'm going to

write 25 grams on top of butane and I've

got a blank here I'm trying to find the

grams of carbon dioxide next I need the

molar masses from the periodic table

when I add up 4 times carbon and 10

times hydrogen add that up I get 58 from

the periodic table one carbon and two

times oxygen gives me 44.

then I'm going to take my 25 and divide

by 58 and that's going to give me 0.431

then multiply times 8 divided by 2 to

get

1.72 moles finally I'm going to take

that 1.72 times 44.

to get 75.9 grams

Stoichiometry in chemistry example problem

Here’s the best method I know of how to your stoichiometry problems in chemistry!


going to look at every single carbon

right that's what it asked us to find

the hybridization for each carbon in the

structure so let's start off with just

this one and I can kind of even just

cover this right okay I just want to

look at the bonds or lone pairs in this

case just bonds that are surrounding

that atom that would be four that would

be four exactly so that would then be

sp3 yep oh see I really struggled with

hybridization for some reason okay

and then now let's move on to this

carbon so how many bonds again same same

thing four bonds

and now looking at this one how many

electron groups do we have that would be

three three correct because this only

counts as one so then we know it's SP2

what about the next carbon also three

yeah

so SP2 yes yeah yeah three electron

groups good and then moving on to this

carbon that would be four electrons

great what about that one how many

electron groups do we have that one's

two great yeah

and then the last one's also too that's

a

Quick Hybridization Review #organicchemistry #chemistry

What the full video on my youtube channel


now sometimes you may need to find

the absolute value of

a complex number

what is the absolute value of 3

plus 4i

here's the equation

the absolute value of a plus bi

is equal to the square root

of a squared plus b squared

it's just the way it works out

so this is going to be the square root

of 3 squared plus 4

squared three squared is nine

four squared is sixteen

and the square root of well nine plus

sixteen is twenty-five

and the square root of twenty-five is

five

so that's the absolute value of three

plus four

so now it's your turn

calculate the absolute value of

minus 12i

so this is going to be the square root

of 5 squared

plus the square root of negative 12

squared which you could just write 12

squared

5 squared is 25

12 times 12 is 144

and these two add up to 169. the square

root of 169 is

and so that's the absolute value of 5

minus 12i

so now why is the absolute value of 3

plus 4i

equal to 5

one way i like to think about it is this

if we plot 3 plus 4i

we need to travel 3 units on the x-axis

and up 4 on the y-axis

so here it is

now let's turn it into a triangle

so this portion of the triangle is three

this part is four

and

let's find the missing side this is a

this is b

the hypotenuse is c we know that a

squared plus b squared is equal to c

squared

so c is simply the square root

of a squared plus b squared

and it turns out that the absolute value

is basically the hypotenuse of the

triangle

which is five

so it helps to know the special

triangles like 3 4 5

5 12 13. notice the answer for the

second example was 13.

there's also the 7 24 25 triangle

and the 8 15 17 triangle

you

Absolute Value of Complex Numbers

This algebra video tutorial explains how to determine the absolute value of complex numbers which is equivalent to the magnitude of the complex number in standard form.

Complex Numbers - Free Formula Sheet:      https://bit.ly/3YAyxZe

_______________________________
Imaginary Numbers - Basic Intro:
https://www.youtube.com/watch?v=vRJqPo_zcnQ

Graphing Complex Numbers:
https://www.youtube.com/watch?v=BJ6b9t0ryhU

Absolute Value of Complex Numbers:
https://www.youtube.com/watch?v=wmnQgD5oqQw

Adding & Subtracting Complex Numbers:
https://www.youtube.com/watch?v=qNNX79cnFyQ

Multiplying Complex Numbers:
https://www.youtube.com/watch?v=MzCS_8Rzja8

Dividing Complex Numbers:
https://www.youtube.com/watch?v=EfRRpVB62Ko

_____________________________________
Simplifying Complex Numbers:
https://www.youtube.com/watch?v=XyksedEntD4

SAT Math - Complex Numbers:
https://www.youtube.com/watch?v=PKO53M0SEPQ

Solving Equations With Complex Numbers:
https://www.youtube.com/watch?v=nRawKl7jP1M

Imaginary Solutions of Polynomials:
https://www.youtube.com/watch?v=tRrPfxR5h-w

Complex Numbers - Test Review:
https://www.youtube.com/watch?v=y2wPAZwZTng

______________________________________
The Discriminant:
https://www.youtube.com/watch?v=k-TDe0OP2XY

Complex Numbers In Polar Form:
https://www.youtube.com/watch?v=J6TnZxUUzqU

Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


now in this lesson

we're going to calculate the surface

area

of a cube

now what's the formula for that

how can we calculate the surface area

of a cube

so all sides of a cube are the same

now let's say if you want to calculate

the area of one of the six faces

let's say the area of this face

it's going to be the length

times the width

now both the length of the width is

equal to x

so if the area of one face is x times x

or x squared

and each face is the same the area or

the total surface area of all six faces

is six x squared

and so let's say if

the side length of a cube is

eight centimeters

the surface area

is going to be six times eight

centimeters squared

eight squared is 64

and six times 64

is

384 and it's going to be square

centimeters

so that's how you can calculate the

surface area

of a cube it's 6x squared where x is the

side length of the cube

you

Surface Area of a Cube

This geometry video tutorial explains how to calculate the surface area of a cube.

3D Shapes - Faces, Edges, & Vertices:     https://www.youtube.com/watch?v=Wmwe1fmR1SM

Rectangular Prism - Volume:
https://www.youtube.com/watch?v=rNIKbT0-ywU

Rectangular Prism - Surface Area:
https://www.youtube.com/watch?v=BsAQbJyEF9g

Rectangular Prism - Diagonal Length:
https://www.youtube.com/watch?v=iO7vb3HLHqU

Triangular Prism - Volume:
https://www.youtube.com/watch?v=HfDHYFgTbxk

Triangular Prism - Surface Area:
https://www.youtube.com/watch?v=152tLGR0lms

Triangular Prism - Lateral Area:
https://www.youtube.com/watch?v=PljECBkHQpg

_______________________________
Hexagonal Prism - Surface Area:
https://www.youtube.com/watch?v=JKyF2r-bIC0

Cube - Volume:
https://www.youtube.com/watch?v=bpRsuccb6dI

Cube - Surface Area:
https://www.youtube.com/watch?v=ZMhkvFwLOR4

Cube - Diagonal Length:
https://www.youtube.com/watch?v=wr3EvQZzoRI

Pyramid - Volume:
https://www.youtube.com/watch?v=8onylJ72ZPQ

Pyramid - Surface Area:
https://www.youtube.com/watch?v=2g6QuOizzac

________________________________
Square Pyramids - Volume:
https://www.youtube.com/watch?v=x8wEnG4GURQ

Cylinder - Surface Area:
https://www.youtube.com/watch?v=LdztqPczYiI

Sphere - Volume:
https://www.youtube.com/watch?v=eAwc8rwMRnI

Sphere - Surface Area:
https://www.youtube.com/watch?v=aXEcU-M_qNA

Cone - Volume:
https://www.youtube.com/watch?v=LypmeZ0tnJA

Cone - Surface Area:
https://www.youtube.com/watch?v=MeWoIcQNqRA

_________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/


in this video we're going to talk about

how to

simplify rational expressions when

adding or subtracting them whenever they

have like denominators

so let's start with this example 3x over

plus

four x plus seven over five

because these two fractions share the

same denominator

we can combine it as a single fraction

so we can write it as three x

plus four x plus seven

all divided by the common denominator

which is five

three x plus four x is seven x

and if we want to we can take out the

gcf which is seven

leaving behind x plus one

so that's the final answer for this

example

let's try another one

7 over x

minus 11 over x

so we can combine it as a single

fraction

seven minus eleven over x

and seven minus eleven is negative four

so the answer is going to be negative

four divided by x

try this one

seven x plus four

divided by x plus two

plus five x

minus seven over x plus two

so let's write it as a single fraction

seven x

plus five x i'm gonna put the like terms

together

plus four minus seven

all divided by x plus two

seven x plus five x is twelve x

four minus seven is negative three

so we can take out a three if we want so

it's going to be four x

minus one over x plus two

and so that's it

let's try one more example

three x minus ten

divided by

x minus one

minus

five x minus twelve

over x minus one

now be careful with this one go ahead

and try it

so first let's write it as a single

fraction

so it's going to be three x minus ten

now this negative sign applies to the 5x

and

negative 12.

so initially i'm going to write it using

parentheses

before you combine like terms distribute

the negative sign

so it's going to be 3x minus 10

minus 5x

plus 12.

3x minus 5x is negative 2x

negative 10 plus 12

is positive 2.

now let's take out the gcf which is

negative two negative two x divided by

negative two

that's positive x

and positive two divided by negative two

is negative one

so notice that we can cancel x minus one

which means the final answer

is simply minus two

Adding and Subtracting Rational Expressions With The Same Denominators

This algebra video tutorial explains how to add and subtract rational expressions with like denominators.  You simply need to add or subtract the numerators of the fractions.  Don't forget to distribute the negative sign.  This video contains plenty of examples and practice problems.

Fundamental Theorem of Algebra:
https://www.youtube.com/watch?v=cAfRgqEOURw

Rational Expressions - Basic Intro:
https://www.youtube.com/watch?v=0Gq3uw2p6fA

Simplifying Rational Expressions:
https://www.youtube.com/watch?v=uVpsz-xpnPo

Multiplying Rational Expressions:
https://www.youtube.com/watch?v=RROSgr4oXjU

Dividing Rational Expressions:
https://www.youtube.com/watch?v=rMVOdIDNjpA

______________________________________
Adding & Subtracting Rational Expressions:
https://www.youtube.com/watch?v=WWwG2uh4OUE

Rational Expressions - Unlike Denominators:
https://www.youtube.com/watch?v=1KGVwaUhR-s

Simplifying Complex Rational Expressions:
https://www.youtube.com/watch?v=ifDEetTq8bM

How To Solve Rational Equations:
https://www.youtube.com/watch?v=1fR_9ke5-n8

Rational Equations - Extraneous Solutions:
https://www.youtube.com/watch?v=PvMYq9JD724

_____________________________________
Horizontal and Slant Asymptotes:
https://www.youtube.com/watch?v=kvhpu1TkSjI

Finding Rational Functions Given 2 Points:
https://www.youtube.com/watch?v=ODs3t1vX1GY

Rational Functions - X and Y Intercepts:
https://www.youtube.com/watch?v=ebpEDR4-Q3Y

Graphing Advanced Rational Functions:
https://www.youtube.com/watch?v=GxynsEIvjRA

Rational Inequalities:
https://www.youtube.com/watch?v=gfnVHwhEe6U

________________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


[Music]

let's do open in 60 seconds or less

[Music]

today we are doing a Benzene reaction

and we're making this product over here

give it a try let me know what you think

all right so what I see I see a Hera

relationship so they're para to one

another what I need to do then if I want

parent only is I needed but this Groupon

first and then second I need to place my

after I place my carbon chain here which

is my turbutyl and then what I can do

this is a para directing only functional

group

so it's going to place the next group in

the Paris spot only that's going to be

my hno3 and h2so4

there you have it thanks for tuning in

and we'll see you next time

Synthesis: Benzene Reaction #EricTheTutor OrganicChemistry #OCHEM

Visit http://OrganicChemistryTutor.org/ for worksheets, videos and more!

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how many valence electrons do each of

the following atoms have to find the

number of valence electrons for these

representative elements all we have to

do is look at their group number valence

electrons are the electrons in the

highest occupied energy level of an

element's atom the periodic table is

organized to tell us the valence

electrons according to the group numbers

for the representative elements so all

we have to do is look at the group

number and that's the number of valence

electrons calcium CA has two valence

electrons because it's in group two

nitrogen n has five and Xenon XE has

eight thanks for watching if this video

helped you out please give it a like And

subscribe to the channel

How to Determine the Number of Valence Electrons #chemistry #homework FAST

🅰Want to get an A in Chemistry? Or just pass? Subscribe to the Channel, I'll be your virtual Chemistry tutor!

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#chemistry #science #education #stem
#homework #tutor #stemeducation

#shorts #chemistry #science #education #youtubeshorts


in this lesson we're going to focus on

calculating the volume of a cone

so let's say the radius of the cone

is 12 inches

and the height of the cone

is

16 inches what is the volume

the volume of a cone is 1 3

pi r square times the height

so the radius we said is 12 inches and

the height is 16 inches

12 squared is 144 if we divide that by 3

that's 48 and 48 times 16

is 768.

so it's 768 pi

cubic inches

and so that's how you can calculate the

volume

of a cone you can do so using this

formula

so this is the radius

and this is the height

now the decimal answer

is

2412.7 cubic inches for those of you who

have that answer

you

Volume of a Cone

This geometry video tutorial explains how to calculate the volume of a cone given the height and the radius.

3D Shapes - Faces, Edges, & Vertices:     https://www.youtube.com/watch?v=Wmwe1fmR1SM

Rectangular Prism - Volume:
https://www.youtube.com/watch?v=rNIKbT0-ywU

Rectangular Prism - Surface Area:
https://www.youtube.com/watch?v=BsAQbJyEF9g

Rectangular Prism - Diagonal Length:
https://www.youtube.com/watch?v=iO7vb3HLHqU

Triangular Prism - Volume:
https://www.youtube.com/watch?v=HfDHYFgTbxk

Triangular Prism - Surface Area:
https://www.youtube.com/watch?v=152tLGR0lms

Triangular Prism - Lateral Area:
https://www.youtube.com/watch?v=PljECBkHQpg

_______________________________
Hexagonal Prism - Surface Area:
https://www.youtube.com/watch?v=JKyF2r-bIC0

Cube - Volume:
https://www.youtube.com/watch?v=bpRsuccb6dI

Cube - Surface Area:
https://www.youtube.com/watch?v=ZMhkvFwLOR4

Cube - Diagonal Length:
https://www.youtube.com/watch?v=wr3EvQZzoRI

Pyramid - Volume:
https://www.youtube.com/watch?v=8onylJ72ZPQ

Pyramid - Surface Area:
https://www.youtube.com/watch?v=2g6QuOizzac

________________________________
Square Pyramids - Volume:
https://www.youtube.com/watch?v=x8wEnG4GURQ

Cylinder - Surface Area:
https://www.youtube.com/watch?v=LdztqPczYiI

Sphere - Volume:
https://www.youtube.com/watch?v=eAwc8rwMRnI

Sphere - Surface Area:
https://www.youtube.com/watch?v=aXEcU-M_qNA

Cone - Volume:
https://www.youtube.com/watch?v=LypmeZ0tnJA

Cone - Surface Area:
https://www.youtube.com/watch?v=MeWoIcQNqRA

_________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/


go for it what do we think it's got a

charge so I know it's a strong

nucleophile good and then I look at this

and this alkal halide is primary so I

know it it will have to be once again

sn2 yep no trick here I know that this

is sn2 because Yep this is primary I

know this is a strong nucleophile that

checks out that's it yay

Question 2: Is this an SN1 or SN2 reaction? #organicchemistry #chemistry


in this video we're going to talk about

the formation of a cyanohydrin from a

ketone

so let's begin with the overall

chemical reaction

so here we have a ketone specifically

acetone

and we're going to react it with hcn

hydrogen cyanide

the ketone functional group will be

converted into a hydroxyl group

with the addition of a nitrile group

and so this molecule

is called

a cyanohydrin

now let's talk about the mechanism by

which

we can get this product

so the first thing we're going to do is

we're going to use

excess cyanide

and a small amount of hcl

some of the cyanide ions will pick up a

proton from hcl

turning into

hydrogen cyanide

and we're going to get the chloride ion

so keep in mind we have a large amount

of cyanide

a small amount of hcl and so we're going

to get a small amount of hcn

so starting with the ketone functional

group

which

the oxygen has two lone pairs

we're going to take

the cyanide ion

and as the nucleophile it's going to be

attracted

to the carbonyl group

keep in mind the carbon atom has a

partial positive charge

whereas the cyanide ion has a negative

charge so they're attracted to each

other

so as the nucleophile attacks the

carbonyl carbon

the pi electrons in this double bond

are going to break and they're going to

be pulled back to oxygen because oxygen

is more electronegative than carbon

and so what we're going to get right now

is

an alkoxide ion

with

a nitro group attached to it

now in the next step

the alkoxide ion is going to be a prot

let me say that again the alkoxide ion

will be protonated by hcn

so it's going to grab a hydrogen

regenerating the cyanide ion

and so the end result

is

a cyanohydrin molecule

and so that's the mechanism for this

reaction

Cyanohydrin Formation Reaction Mechanism

This organic chemistry video tutorial discusses the reaction mechanism of the formation of a cyanohydrin molecule using a ketone and HCN.

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in this lesson we're going to focus on

simplifying natural logs

with e

so let's start with the basics what is

the natural log of one

log of one is always zero

a log

can have any base

it could be base 4 it can be base 10 it

could be anything

however

when it has the base e

a log becomes a natural log

so natural logs

only have base e and e is a number it's

like

2.718 something

but that's e

so now what is the natural log of e

because the base

is the same as e

ln base e of e is one

so the natural log of e is always equal

to one make sure you know that by the

way

now what is the natural log of e raised

to the seventh

we could take the seven and move it to

the front

so this is seven

lne

and we know that lne is one so this is

equal to seven

now what about

e

raised to the ln 8

what is that equal to

do you recall what 5

log base 5

of 9 is equal to

since these are the same

the answer is simply not

the natural log has the base e and so

these are the same

and the answer is simply 8.

now what about e raised to the natural

log of x cubed

so once again the base is e

and so these will

cancel and this is simply equal to x

cubed

let's try one more example

e raised to the seven l and y

what is that equal to

we can't just say it's y because of the

seven

however what we can do

is take the seven and move it here

so this is equivalent to e

ln y to the seventh

and the base is e

so we can get rid of these two

and the final answer

is simply y to the seventh

you

Natural Logarithms

This algebra video tutorial provides a basic introduction into natural logarithms.  It explains how to evaluate natural logarithmic expressions with the natural base e and how to evaluate exponential expressions with natural logs in on the exponent of the natural base e using properties of logarithms.

Logarithms - Free Formula Sheet:
https://bit.ly/4fEwqv0

Algebra Final Exam Review:
https://www.youtube.com/watch?v=U0Y8nSmEpNM

________________________________
Logarithms - The Easy Way!
https://www.youtube.com/watch?v=kqVpPSzkTYA

Log to Exponential Form:
https://www.youtube.com/watch?v=f0C1KL7GkqY

Change of Base Formula:
https://www.youtube.com/watch?v=FFm-zaFW_X4

Change of Base Log Problem:
https://www.youtube.com/watch?v=p7hD9VdXv9U

Properties of Logarithms:
https://www.youtube.com/watch?v=Jtv9Lnf7Zw8

____________________________________
Expanding Logarithmic Expressions:
https://www.youtube.com/watch?v=OIz-5MyJA3g

Condensing Logarithmic Expressions:
https://www.youtube.com/watch?v=luRrOlsB4cY

Natural Logarithms:
https://www.youtube.com/watch?v=daUlTsnCNRQ

Solving Exponential Equations:
https://www.youtube.com/watch?v=9tutJ5xrRwg

Exponential Equations - Quadratic Form:
https://www.youtube.com/watch?v=yNgmVu0R_T8

_______________________________________
Solving Logarithmic Equations:
https://www.youtube.com/watch?v=fnhFneOz6n8

Graphing Logarithmic Functions:
https://www.youtube.com/watch?v=-nptxS9rZNA

Graphing Exponential Functions:
https://www.youtube.com/watch?v=DASfP8KAyvs

Compound Interest Word Problems:
https://www.youtube.com/watch?v=Hn0eLcOSQGw

Logarithms Practice Problems:
https://www.youtube.com/watch?v=7DVbQKI600k

_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


in this lesson we're going to talk about

how to convert a quadratic function in

standard form

to vertex form and vice versa

sometimes you may need to be able to do

this

so let's cover it in this video

and a way to do it is to use the

we need to complete the square basically

half of six is three

so we're going to add three squared to

both sides

adding it to the left side

is the same as subtracting it from the

right side

so we can add 3 squared to both sides or

we can add 9 to the right side and also

simultaneously subtract 9 from the right

side

9 and negative 9 is zero so we're not

changing the value of the right side

so let's do it that way

now let's factor x squared plus six x

plus three squared every time you

complete the square you're creating a

perfect square trinomial

and to factor it you can see everything

you need here

first it's x

and then whatever this sign is

it's plus

and then it's this number before you

square it

three

squared

outside we have negative five minus nine

so in vertex form it's x plus three

squared

minus fourteen

so we can clearly see that the vertex

is negative three negative fourteen

and we can also use this equation to

find vertex negative b over 2a

b is six

a is one negative six over two is

negative three which

confirms the x value here

now let's talk about how we can

go back

to standard form

so how can we convert this expression

which is in vertex form back to standard

form

all you need to do is expand x plus 3

squared

let's foil it x times x is x squared

x times 3 is 3x

3 times x is 3x

3 times 3 is 9.

and then combine like terms 3x plus 3x

is 6x

minus 14 is negative 5.

so this gives us

the original function in standard form

so now you know how to convert from

standard form to vertex form by

completing the square

and you know how to convert from vertex

form to standard form by expanding and

using the foil method

Standard Form to Vertex Form - Quadratic Equations

This algebra video tutorial explains how to convert a quadratic equation from standard form to vertex form and from vertex form to standard form.

Quadratic Equations - Free Formula Sheet:     https://bit.ly/3WZ8v1Z

Algebra Final Exam Review:
https://www.youtube.com/watch?v=U0Y8nSmEpNM

________________________________
How To Solve Simple Quadratic Equations:
https://www.youtube.com/watch?v=-KWsS2FZVTA

Solving Quadratic Equations by Factoring:
https://www.youtube.com/watch?v=qeByhTF8WEw

How To Factor Difficult Quadratic Equations:
https://www.youtube.com/watch?v=VG1luiL_INQ

Solving QE By Completing the Square:
https://www.youtube.com/watch?v=WOb25i8FBBw

Solving Equations in Quadratic Form:
https://www.youtube.com/watch?v=eWjixwGK3YM

Sum and Products - Quadratic Equations:
https://www.youtube.com/watch?v=kBSj35rik8w

_______________________________________
How To Calculate the Discriminant:
https://www.youtube.com/watch?v=6fU9ZgwbU74

Standard Form to Vertex Form:
https://www.youtube.com/watch?v=pf9LkX8hpTQ

Graphing Quadratic Functions:
https://www.youtube.com/watch?v=H8OQtxSRe_k

How To Find The Axis of Symmetry:
https://www.youtube.com/watch?v=tyzd4VujaqY

Graphing Quadratic Functions - Vertex Form:
https://www.youtube.com/watch?v=OHH7fX_M8Ns

Graphing QF in Standard Form:
https://www.youtube.com/watch?v=uYNKJWFYh7k

___________________________________________
Writing Quadratic Equations:
https://www.youtube.com/watch?v=SB6eCyG4GEA

Maximum and Minimum Word Problems:
https://www.youtube.com/watch?v=d5YktqR-4FU

Systems of Quadratic Equations:
https://www.youtube.com/watch?v=rq5AjFs95qw

Systems of Nonlinear Equations:
https://www.youtube.com/watch?v=JPdLEaxlnZQ

Quadratic Inequalities:
https://www.youtube.com/watch?v=_gWjLKsFOPE

Quadratic Equations - Test Review:
https://www.youtube.com/watch?v=fFFA7Q4eVuY

___________________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


now in this lesson we're going to focus

on

converting logarithmic expressions

into exponential equations

so consider this logarithmic expression

log base 3 of 9

is equal to 2.

how can you convert it from logarithmic

form to exponential form

well here is the generic equation let's

say if we have log base a

of b is equal to c

a

raised to the c

is equal to b

so this is the equivalent expression in

exponential form

so likewise three

raised to the second power is equal to

nine

so we can write it as three squared

is equal to nine

now it's your turn

convert the following logarithmic

expression

into its exponential form and you can

try this one as well

4 raised to the third power

is equal to 64.

so that's how you can write it in

exponential form

eight raised to the second power is

equal to 64.

and so we can write it like this

now what about the reverse

let's say if we have an equation

in exponential form

convert it to logarithmic form

try these three examples

feel free to pause the video

so the base is two the base is the one

with the exponent

so log base 2

and what is across the equal side

will go here

and

the logarithmic function always equals

the exponent

so to check it you can see that 2 raised

to the third power

is equal to 8.

the next one is going to be log base 4

of 16

is equal to the exponent

which is two

four raised to the second power is equal

to sixteen

for the last one log

base five the base is the one with the

exponent

of 125

is equal to the exponent of three

five

to the third power is equal to 125

you

Writing Logarithmic Equations In Exponential Form

This algebra video tutorial explains how to write logarithmic equations in exponential form.  It also explains how to convert exponential equations to logarithmic form.

Logarithms - Free Formula Sheet:       https://bit.ly/4fEwqv0

Algebra Final Exam Review:
https://www.youtube.com/watch?v=U0Y8nSmEpNM

_________________________________
Logarithms - The Easy Way!
https://www.youtube.com/watch?v=kqVpPSzkTYA

Log to Exponential Form:
https://www.youtube.com/watch?v=f0C1KL7GkqY

Change of Base Formula:
https://www.youtube.com/watch?v=FFm-zaFW_X4

Change of Base Log Problem:
https://www.youtube.com/watch?v=p7hD9VdXv9U

Properties of Logarithms:
https://www.youtube.com/watch?v=Jtv9Lnf7Zw8

____________________________________
Expanding Logarithmic Expressions:
https://www.youtube.com/watch?v=OIz-5MyJA3g

Condensing Logarithmic Expressions:
https://www.youtube.com/watch?v=luRrOlsB4cY

Natural Logarithms:
https://www.youtube.com/watch?v=daUlTsnCNRQ

Solving Exponential Equations:
https://www.youtube.com/watch?v=9tutJ5xrRwg

Exponential Equations - Quadratic Form:
https://www.youtube.com/watch?v=yNgmVu0R_T8

_______________________________________
Solving Logarithmic Equations:
https://www.youtube.com/watch?v=fnhFneOz6n8

Graphing Logarithmic Functions:
https://www.youtube.com/watch?v=-nptxS9rZNA

Graphing Exponential Functions:
https://www.youtube.com/watch?v=DASfP8KAyvs

Compound Interest Word Problems:
https://www.youtube.com/watch?v=Hn0eLcOSQGw

Logarithms Practice Problems:
https://www.youtube.com/watch?v=7DVbQKI600k

_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


seven things i wish i remembered before

starting oak chem number one

drawing lewis structures it's already

giving you the order in which uh like

how to actually start drawing the

structure so i'm going to start off with

ch3 knowing that carbon is here it's

surrounded by

three hydrogens

next this carbon is bonded to the next

carbon that follows

and then this carbon is bonded to

hydrogen and to oxygen so i'm going to

place oxygen here and hydrogen here

all right this is not telling us that

they're bonded to each other if that

were the case it would have said oh

now in this case carbon is not happy it

doesn't follow the octet rule right now

it wants to it always needs to follow

that octet rule when we're drawing these

structures so what we need to do is see

this would be incorrect instead one pair

of lone pairs would actually

form a double bond

and this would be the correct structure

What to remember from General Chemistry for Organic Chemistry #shorts

7 main things to remember from General Chemistry before starting Organic Chemistry.


how to calculate the volume

of a cylinder

so let's say the radius of the cylinder

is 5 inches

and the height of the cylinder

let's say it's 10 inches

so using this information

what is the volume of the cylinder

the volume is pi r squared times height

it's basically the area of the base

times the height of the cylinder

so for any prism the volume is base

times height

the area of the base which is the area

of a circle that's pi r squared and so

it's pi r squared times h

in this example the radius is 5

and the height is 10.

5 squared is 25 and 25 times 10 is 250.

so the volume for this cylinder is 250

pi

and it's cubic inches

so that is the answer

now if you want to get the decimal value

of that answer

it's approximately

cubic inches

you

Volume of a Cylinder

This geometry video tutorial explains how to calculate the volume of a cylinder.

3D Shapes - Faces, Edges, & Vertices:     https://www.youtube.com/watch?v=Wmwe1fmR1SM

Rectangular Prism - Volume:
https://www.youtube.com/watch?v=rNIKbT0-ywU

Rectangular Prism - Surface Area:
https://www.youtube.com/watch?v=BsAQbJyEF9g

Rectangular Prism - Diagonal Length:
https://www.youtube.com/watch?v=iO7vb3HLHqU

Triangular Prism - Volume:
https://www.youtube.com/watch?v=HfDHYFgTbxk

Triangular Prism - Surface Area:
https://www.youtube.com/watch?v=152tLGR0lms

Triangular Prism - Lateral Area:
https://www.youtube.com/watch?v=PljECBkHQpg

_______________________________
Hexagonal Prism - Surface Area:
https://www.youtube.com/watch?v=JKyF2r-bIC0

Cube - Volume:
https://www.youtube.com/watch?v=bpRsuccb6dI

Cube - Surface Area:
https://www.youtube.com/watch?v=ZMhkvFwLOR4

Cube - Diagonal Length:
https://www.youtube.com/watch?v=wr3EvQZzoRI

Pyramid - Volume:
https://www.youtube.com/watch?v=8onylJ72ZPQ

Pyramid - Surface Area:
https://www.youtube.com/watch?v=2g6QuOizzac

________________________________
Square Pyramids - Volume:
https://www.youtube.com/watch?v=x8wEnG4GURQ

Cylinder - Surface Area:
https://www.youtube.com/watch?v=LdztqPczYiI

Sphere - Volume:
https://www.youtube.com/watch?v=eAwc8rwMRnI

Sphere - Surface Area:
https://www.youtube.com/watch?v=aXEcU-M_qNA

Cone - Volume:
https://www.youtube.com/watch?v=LypmeZ0tnJA

Cone - Surface Area:
https://www.youtube.com/watch?v=MeWoIcQNqRA

_________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/


now there's one more lesson that we need

to talk about

and that is

a lesson on recursive formulas so let's

say if we have the formula

a of n plus one is equal to a of n

or rather three times a of n plus two

you need to know that a of n is the

previous term a of n plus one is an x

term

so let's say if the first term

is one

what is the value of

the next four terms

so if n is one n plus one is two

so the second term is three times the

value of the first term plus two

so three times one plus two which is

five

now if you want to find the third term

it's three times the second term plus

two

the second term is five

three times five is fifteen plus two is

seventeen

now if we wanna find the fourth term

it's three times the third term

plus two

the third term is seventeen

seventeen times three is fifty-one plus

two that's fifty-three so that's the

value of the fourth term

let's try another example

so let's say that a of n

is equal to two

times a of n minus one

and let's go ahead and square it

and then we'll subtract it by five

so a of n plus 1 was the next term a of

n was the previous term in this case

a of n minus 1 is the previous term a of

n is the next term

and let's say the first term

is equal to

two

so a of two is two times the square

of a of one minus five

so it's two times two squared minus five

two squared is four times two is eight

minus five that's three

a of three

is two times a of two

squared minus five

so a of two is three

three squared is nine

two times nine is eighteen eighteen

minus 5 is 13.

a sub 4

is 2 times the square of a sub 3 minus

a sub 3 is 13

13 squared is 169

169 times 2

that's 338 minus 5

so this is equal to 333

and so that's how you can work with a

recursively defined formula

you

Recursive Formulas For Sequences

This algebra video tutorial provides a basic introduction into recursive formulas and how to use it to find the first four terms or the nth term of a sequence.  This video contains 2 examples on recursive sequences.  This topic is taught within the chapter of arithmetic sequences.

Arithmetic Sequences - Free Formula Sheet:
https://bit.ly/4eau2KQ

_____________________________________________
Algebra For Beginners:
https://www.youtube.com/watch?v=MHeirBPOI6w

Arithmetic Sequences and Series:
https://www.youtube.com/watch?v=XZJdyPkCxuE&t=2s

Sigma Notation and Summation:
https://www.youtube.com/watch?v=xavgv1m9feE

Writing a General Formula of an Arithmetic Sequence:
https://www.youtube.com/watch?v=UPvyQV6wZQw

___________________________
Recursive Formulas:
https://www.youtube.com/watch?v=IFHZQ6MaG6w

Fibonacci Sequence:
https://www.youtube.com/watch?v=mVO2dcuR7P0&t=1s

Geometric Sequences and Series:
https://www.youtube.com/watch?v=zRKZ0-kOUZM&t=2s

Algebra and Precalculus Videos:
https://www.video-tutor.net/


in this video we're going to talk about

how to identify

the relative maximum and minimum values

of the function f of x

so

here we have a maximum a relative max

it's the highest point in that region

and over here we have a relative minimum

now the location

of these values is associated with the x

values

so we have a relative max

at x equals negative three and we have a

relative min

at x equals one

now the actual relative

maximum value

is the y value that corresponds to this

point

so the y value is positive three

and here the y value is negative three

so

let's say if we were asked to find the

location of the relative maximum we

could say that it's located

at x

equals negative three

and the location

of the relative minimum

we could say it's located at

x equals 1.

and then for this part what is

the relative minimum value of f of x

so the relative minimum value

that's equal to the y value that

corresponds to that point so that's

negative three

and the relative maximum value

is the y value that corresponds to that

point

which is positive three

let's try another example

so identify

all of the relative extreme values the

minimums the maximums the location and

their actual values

so here we have a minimum

and we have a relative maximum

a minimum and another

maximum

so the first relative minimum is located

at an x value of negative four

and the second one is located at an x

value of one

the first relative maximum is located at

approximately x equals negative two

and the second relative max is at

x equals four

so that's the location of these extreme

values

now the first actual relative minimum

value

has a y value of

two

and the second minimum value

the y value is negative one

now the first maximum value on the left

it has a y value of five

and the second one

has a y value of

three

now sometimes depending on what type of

problem you're working on

the problem may ask for the entire

coordinate of each of these relative

maximums and minimums so for this one

you could say it's located at negative

four comma two

and then this maximum have the point

let's put it here negative two comma

five

and for this one it's

four three

and for this minimum it's one negative

one

so you can actually write the entire

point

if you want to

you

Identifying The Relative Maximum and Minimum Values of a Function

This precalculus video tutorial provides a basic introduction into the relative maximum and minimum values of a function.  It explains how to identify where the relative maxima and relative minima are located as well as determining the relative maximum and minimum values.

Functions - Free Formula Sheet:               https://bit.ly/3Ai8NZv
________________________________________________________________________________________
Introduction to Functions:                          https://www.youtube.com/watch?v=DrEXTC6mIO8
Evaluating Functions:                                  https://www.youtube.com/watch?v=HyNie_PYgsY
Function Operations:                                   https://www.youtube.com/watch?v=3gaxVHVI4cI
Increasing and Decreasing Functions:     https://www.youtube.com/watch?v=Dyl7jPlJXOM
Relative Maximum & Minimum Values:   https://www.youtube.com/watch?v=GaltHJF6WyI
Relations and Functions:                            https://www.youtube.com/watch?v=wbBY2tTqXDA
Domain and Range from a Graph:            https://www.youtube.com/watch?v=KirGQOwjBVI
How To Find the Domain of a Function:  https://www.youtube.com/watch?v=djT6-YamHaA
Average Rate of Change of a Function:    https://www.youtube.com/watch?v=f_Q0qlwlclQ
The Difference Quotient of a Function:    https://www.youtube.com/watch?v=qQgVomi8lCc
________________________________________________________________________________________
Evaluating Piecewise Functions:               https://www.youtube.com/watch?v=OYOXMyFKotc
Graphing Piecewise Functions:                 https://www.youtube.com/watch?v=Uzw9tsGq2Pw
Composite Functions:                                 https://www.youtube.com/watch?v=ZFPkQkURSxk
How To Evaluate Composite Functions:  https://www.youtube.com/watch?v=6vQxIG4lJ3w
Composite Functions - Data Table:           https://www.youtube.com/watch?v=6vQxIG4lJ3w
Comp. of 3 Functions - Data Table:           https://www.youtube.com/watch?v=Ote1KvW6BXw
Decomposing Functions:                            https://www.youtube.com/watch?v=NmfaC7etZms
Introduction to Inverse Functions:            https://www.youtube.com/watch?v=TN4ybFiuV3k
How To Find The Inverse of a Function:   https://www.youtube.com/watch?v=2zeYEx4eTdc
Verifying Inverse Functions:                       https://www.youtube.com/watch?v=6QamgSPprjA
________________________________________________________________________________________
Horizontal Line Test - 1 to 1 Functions:    https://www.youtube.com/watch?v=6u9Qh1Vi_Qw
Vertical Line Test:                                         https://www.youtube.com/watch?v=Mxe2lX1htNk
Graphing Inverse Functions:                       https://www.youtube.com/watch?v=ukEtad_aml4
Composite and Inverse Functions:            https://www.youtube.com/watch?v=GEgFmxxOJno
Even and Odd Functions:                            https://www.youtube.com/watch?v=fKyBOLsqRlo
Transformations of Functions:                  https://www.youtube.com/watch?v=Tmdrjs9xufc
Linear Functions:                                          https://www.youtube.com/watch?v=BtcKotD6Ni8
Functions and Graphs - Problems:            https://www.youtube.com/watch?v=kvU9sOzT2mk
Functions - Test Review:                             https://www.youtube.com/watch?v=1xATmTI-YY8
________________________________________________________________________________________
Logarithms Practice Problems:                 https://www.youtube.com/watch?v=7DVbQKI600k
Writing Equations of Ellipses:                    https://www.youtube.com/watch?v=OPSCKXXvWiM
Hyperbolas - Conic Sections:                     https://www.youtube.com/watch?v=Iu-4-fizlD4
Arithmetic Sequences:                                https://www.youtube.com/watch?v=XZJdyPkCxuE
Geometric Sequences:                                https://www.youtube.com/watch?v=zRKZ0-kOUZM
Intro to Probability:                                       https://www.youtube.com/watch?v=SkidyDQuupA
Intro to Statistics:                                         https://www.youtube.com/watch?v=XZo4xyJXCak
Trigonometry For Beginners:                      https://www.youtube.com/watch?v=PUB0TaZ7bhA
SAT Math Test Prep:                                    https://www.youtube.com/watch?v=fTGuTEQCsZY
ACT Math Test Prep:                                    https://www.youtube.com/watch?v=SsA7rZ8kczM
________________________________________________________________________________________
Algebra For Beginners:                                https://www.youtube.com/watch?v=MHeirBPOI6w
Algebra 2 Introduction:                                https://www.youtube.com/watch?v=i6sbjtJjJ-A
Algebra 1 Review Study Guide:                   https://www.youtube.com/watch?v=TbJ5gqLRpeM
Algebra Final Exam Review:                        https://www.youtube.com/watch?v=U0Y8nSmEpNM
Pre-Calculus Final Exam Review:               https://www.youtube.com/watch?v=Tj-V6KnwM5w
Full Length Exam Videos + Worksheets:  https://bit.ly/4990rzU


what about this one okay so I have an

alcohol which is neutral and then on

this guy right here it is secondary well

the indicator would be the nucleophile

because it's neutral it have to be sn1

this is a secondary which works for both

sn1 and sn2 it does how else can we

classify that alal haly as um alyc good

so it is secondary and it's also alyc

which makes it even faster when it is

ailc that's true so okay you're right

it's SN one because this is neutral this

still works with something that's

secondary and especially works with

something that's ayic yeah okay

Question 3: Is this an SN1 or SN2 reaction? #chemistry #organicchemistry #chemtube


[Music]

hi everyone this is a video tutorial

about aromatic compounds so we're

basically going to look at the three

characteristics that make a compound

aromatic and how you can apply that to

an example to determine whether or not a

specific compound does fall in the

aromatic bracket so if we take a look

here you'll see that we have three basic

rules for an aromatic compound the first

one is it has to be cyclic so it could

be a three-membered ring or a

six-membered ring but as long as it is a

closed Cy

the second thing is it has to be planer

so any and all atoms involved in that

cyclic component of your structure even

if it's a bigger structure have to be

SP2 hybridized the third and final piece

is that you're going to have to have an

odd number of P Cloud electron pairs so

let's see what this looks like in

practice okay so now let's

systematically apply these three rules

to each of these four compounds to

determine whether or not they're going

to be aromatic so if we take a look at

this first compound here we see that it

meets the first criteria it does have a

cycle in it the second criteria is that

it has to be planer and if we take a

look all of the carbons that are

participating in this cycle here are SP2

hybridized which would mean they would

be planer remember that this carbon here

even though it's sp3 doesn't impact our

aromaticity because it's not directly

part of this ring the third rule is that

we need to have an odd number of py

cloud electron pairs so here we have 1 2

3 so this one meets all three criteria

so this here would be an aromatic

compound a really stable compound let's

take a look at the second one so it's

got the cycle so good on the first

criteria the second one has to be planer

so we can see that all of the carbons

that are participating in those double

bonds would be SP2 hybridized these ones

here though would not they both have two

hydrogens implied coming off of them so

they would be sp3 hybridized and because

of that this would not be a plain cyclic

compound so this one here would not be

aromatic let's try again on the third

one so here cyclic it is it may look

like a square but that's still a cyclic

compound the second criteria planer all

of these carbons are SP2 hybridized so

we're doing well so far the third

criteria an odd number of py cloud

electrons in this case we actually have

two so this would be a different kind of

compound and it would be called

anti-aromatic so whereas aromatic

compounds are particularly stable

anti-aromatic compounds are particularly

unstable so this would definitely not

fall in the aromatic category and the

fourth and final one here we see cyclic

so we're meeting that criteria the

second one SP2 hybridize so this would

be SP2 SP2 SP2 and SP2 this one here

kind of defies expectation so this would

have a hydrogen coming off and if you

counted you have 1 2 3 four areas of

electron density which is typically

going to be labeled sp3 but now this is

the thing right we have all these rules

to help us understand molecules but they

don't follow our rules and they do

whatever leads to the greatest stability

most often so in this case here if this

one adopted an SP2 hybridization then it

would have one 2 three pie Cloud

electron pairs meaning that would make

it aromatic and that actually is what

this compound does so this one may not

look at initial

but this one would fall under an

aromatic heading so that's pretty much

how you apply the rules to understand

whether or not a compound is

[Music]

aromatic

What Is An Aromatic Compound?

This video discusses the criteria for aromaticity and how to apply it to a compound to determine if it is aromatic.


now let's say if we're given an equation

in point slope

form how can we graph this equation on a

coordinate

plane what would you do in order to

graph

it now the first thing you should do is

identify the

slope and the point

the XY ordered pair so here's the

original

equation so we can see that the slope is

equal to

two so m is

two and then we can see that

X1 is positive 1 not negative 1 but

positive 1 and y1 is posi 3 so we have

the

point 1 comma 3 X is 1 and Y is 3 so

what you want to do is plot the point

first 1 comma 3 is over here and the

slope is equal to

two that means as you travel one unit to

the right you need to go up two

units so the next point is going to be

at 2 comma 5 so if you go one to the

left you need to go down to

units now granted this Line's not going

to be perfectly straight but you get the

picture and then just connect them with

a straight

line let's try another

example so let's say if we have this

equation y + 3 is equal to 32 * x +

4 so identify the slope and the point we

can see that the slope is equal to 3

over2 now what's X1 and what's

y1 X1 is -4 y1 is3 basically you just

got to change the sign of these numbers

if you see a plus4 make it a Nega four

if you see a positive three make it a

negative3 if you see a negative3 make it

a positive three so just reverse the

signs and you're going to get the point

which is4 comm3

so now we can go ahead and plot

it the first point is at

-43 and the slope is 3 over

two three is the rise two is the

run so we're going to travel two units

to the right and we're going to go up

three units

so the next point that we're going to

get is -2 Comm 0 x is -2 Y is

z so now let's use the slope again let's

travel two units to the right and let's

go up three units so this will take us

to the

point0 comma

3 which is a y intercept of

three and now let's connect these points

so now you know how to graph a linear

equation in point slope form so all you

need to do is find the X and Y values of

the point the first point that you need

to plot and then use the slope to get

the next

Point all you need is two points if you

have two points you can draw a straight

line if you want at the third Point

that's fine too but you just need two

points at minimum to graph a straight

line

How To Graph Linear Equations In Point Slope Form | Algebra

This algebra video tutorial provides a basic introduction on how to graph linear equations in point slope form.  It contains a few examples and practice problems.

Linear Equations - Free Formula Sheet:       https://bit.ly/3WxIvJF

______________________________
Algebra For Beginners:
https://www.youtube.com/watch?v=MHeirBPOI6w

How To Solve Linear Equations:
https://www.youtube.com/watch?v=7DPWeBszNSM

Solving Linear Equations - More Problems:
https://www.youtube.com/watch?v=Z-ZkmpQBIFo

Translating Words to Algebraic Expressions:
https://www.youtube.com/watch?v=QEnFIgN8UBw

Graphing Ordered Pairs:
https://www.youtube.com/watch?v=yaOf7ioCgFQ

How To Find The Slope of a Line:
https://www.youtube.com/watch?v=jlkE4VCnhdE

________________________________
Finding The Slope Given 2 Points:
https://www.youtube.com/watch?v=Id_UqMLAXzY

Undefined Slope:
https://www.youtube.com/watch?v=4eYlTOy-IXw

Slope-Intercept Form:
https://www.youtube.com/watch?v=qXX47hS2KLw

Slope-Intercept Form to Standard Form:
https://www.youtube.com/watch?v=mCzVZptDhvU

How To Find the X and Y Intercepts:
https://www.youtube.com/watch?v=zL1E5w2sMxc

Point-Slope Form:
https://www.youtube.com/watch?v=yoHs1h5qtuQ

____________________________________
Graphing Equations In Point Slope Form:
https://www.youtube.com/watch?v=XzG-fi__hsU

Graphing Horizontal and Vertical Lines:
https://www.youtube.com/watch?v=ADGduYvdFmc

Writing Equations Given a Point & Slope:
https://www.youtube.com/watch?v=Ms5ojdI6UuM

Writing Linear Equations Given 2 Points:
https://www.youtube.com/watch?v=lzqTD0JWwhY

Writing Linear Equations From Graphs:
https://www.youtube.com/watch?v=JaX_dIDUYBg

Finding The Point of Intersection:
https://www.youtube.com/watch?v=R0bGxNzgL2o

______________________________________
Writing Equations Given X & Y Intercepts:
https://www.youtube.com/watch?v=ri1bagtR08A

Writing Equations In Standard Form:
https://www.youtube.com/watch?v=CN4-ty9e5Jk

Writing Equations Using a Function Table:
https://www.youtube.com/watch?v=DffvEuX1v60

Parallel and Perpendicular Lines:
https://www.youtube.com/watch?v=Uq8pSFaXPmQ

Writing Equations of Perpendicular Lines:
https://www.youtube.com/watch?v=Nj6OKT-zKWg

Linear Equations - Test Review:
https://www.youtube.com/watch?v=Ft2_QtXAnh8

Final Exams and Video Playlists:
https://www.video-tutor.net/


in this video we're going to talk about

polygons a polygon with three sides is

known as a

triangle a polygon with four sides is a

quadrilateral now if we're dealing with

regular polygons all four sides are

congruent and all angles are the same

which makes this particular

quadrilateral a

square a five-sided polygon

is known as a

pentagon and a polygon with six

sides is known as a

hexagon a polygon with eight

sides is known as an

octagon so those are some common names

that you want to be familiar

with now let's say if we have a regular

pentagon

what is the

measure of an interior angle inside a

pentagon the first thing you need to do

is find the sum of all the interior

angles in a polygon and you could use

this formula it's N - 2 * 180 where n

represents the number of sides in a

polygon in a pentagon there are five

sides so n is

five so the first thing you want to do

is subtract 5 by two which is three and

then take that number multiply it by

180° so the sum of all five angles in a

pentagon is

540° now to find the interior angle

which we can call X take the total angle

and divide it by the number of sides so

we're going to divide it by

five 500 ID 5 is 100

40 / 5 is 8 so 540 / 5 is 100 + 8 or

108 so that's going to be the measure of

each interior angle inside a

pentagon so every angle that you see

inside of it is

108° with a total angle of

540 so now it's your turn find the

measure of each interior

angle inside a

hexagon so first we need to find the sum

of all interior

angles so let's use the same Formula nus

2 *

180 a hexagon has six

sides 6 - 2 is 4 so then this is 4 * 180

which is

720 so now we're going to take 720

and divid by the number of sides of a

hexagon which is

6 72 / 6 is 12 so 720 ID 6 is 120 so

that's the measure of each interior

angle

inside the hexagon every angle is

for

Interior Angles of a Polygon - Geometry

This geometry video tutorial focuses on polygons and explains how to calculate the interior angle of a polygon such as hexagons, pentagons, and octagons.

Pre-Algebra Video Playlist:
https://www.youtube.com/watch?v=WJqw-cxvKgo&list=PL0o_zxa4K1BVoTlaXWFcFZ7fU3RvmFMMG


in a chemical reaction the reactants are

consumed in specific ratios based on the

Stoichiometry of the balanced chemical

equation in this equation for every one

mole of ethene three moles of oxygen gas

react we could say that the reactants

react in a one to three ratio when

there's a limiting reactant it means the

correct ratio isn't met and there will

be some leftover reactant and excess

reactant the limiting reactant is the

reactant that runs out first and

determines the maximum amount of

products that can be produced in this

problem we have two reactants 2.7 moles

of ethene reacts with 6.3 moles of o2 to

determine the limiting reactant we need

to compare these amounts to the mole

ratio of the reactants in the ballast

equation so we can calculate the number

of moles of o2 needed if all 2.7 moles

of ethylene reacts we just multiply 2.7

moles by the ratio of o2 to ethene which

is three over one so if all 2.7 moles of

ethene reacts 8.1 moles of o2 is

required however we only have 6.3 moles

of o2 not 8.1 this means that O2 is a

limiting reactant and ethine is in

excess

Limiting Reactant made SIMPLE 😃💯 Chemistry Tutoring #chemistry #shorts #education #homework

The equation for the complete combustion of ethene (C2H4) is
C2H4(g) + 3O2(g)    =    2CO2(g) + 2H2O(g)
If 2.70 mol C2H4 reacts with 6.30 mole of O2, what is the limiting reactant?

chemistry tutor
chemistry homework

#science #chemistry #education #homework #youtubeshorts #stem #stemeducation


in this video we're going to talk about

the law

of conservation of mass

so what is the main idea behind this law

the main idea is that

matter cannot be created or destroyed in

a chemical reaction

so let me give you an example

let's say if we react methane gas

with oxygen

so let's say if we have a closed

container

and

we're going to make 16 grams of methane

in this container

we're also going to place 64 grams of

oxygen gas

so

the methane and the oxygen gas they

cannot

leave the container they're stuck there

now as the reaction proceeds it's a

combustion reaction it's going to

produce carbon dioxide

and water vapor

depending on the temperature

now let's say if you collect 44 grams of

carbon dioxide

according to the law of conservation of

mass

how many grams of water

should you expect

to be present at the end of this

reaction

now think of the total mass of the

reactants the reactants

are the stuff on the left side

we have 16 grams of methane

and 64 grams of oxygen

so therefore

we're starting with 80 grams

of reactants

so before the reaction

we had 80 grams of matter

at the end of the reaction according to

the law of conservation of mass in a

closed system

you should still have 80 grams of mass

so if we have 44 grams of carbon dioxide

the remaining amount of mass should be

water 80 minus 44

is 36

so therefore

we should expect to collect 36 grams of

water

and that's the main idea behind the law

of conservation of mass

if you have 80 grams of material inside

the closed container before the reaction

then when the reaction is complete you

should still have 80 grams of matter

inside that container

in a chemical reaction the only thing

that's happening

is that the atoms are rearranging

themselves

here carbon is bonded to hydrogen but

now

it's bonded to oxygen

so therefore the total mass

should remain the same

the atoms are simply switching partners

they just rearrange themselves in its

chemical reaction

but the amount of mass the quantity of

matter should still remain the same

the only way you can change it is if you

add more mass into the

chamber or the reaction container

you

Law of Conservation of Mass - Fundamental Chemical Laws, Chemistry

This chemistry video tutorial discusses the law of conservation of mass and provides examples associated with chemical reactions.  The conservation of mass in a chemical reaction is one of the fundamental laws in chemistry.  The total mass of the reactants must equal the total mass of the products in a chemical reaction.

Chemistry - Basic Introduction:
https://www.youtube.com/watch?v=-KfG8kH-r3Y

Scientific Notation Review:
https://www.youtube.com/watch?v=ZtB0vJMGve4

Significant Figures Review:
https://www.youtube.com/watch?v=l2yuDvwYq5g

Unit Conversion Problems:
https://www.youtube.com/watch?v=eK8gXP3pImU

Accuracy and Precision:
https://www.youtube.com/watch?v=0IiHPKAvo7g

Density Practice Problems:
https://www.youtube.com/watch?v=9CKDQE35qXQ

________________________________
Pure Substances & Mixtures:
https://www.youtube.com/watch?v=OHhnm2p5G3o

Homogeneous & Heterogeneous Mixtures:
https://www.youtube.com/watch?v=eI-tmv4DLEk

Physical and Chemical Changes:
https://www.youtube.com/watch?v=YE2xaMsoGFU

Solids, Liquids, Gases, & Plasma:
https://www.youtube.com/watch?v=9TVOlTolKFA

Physical Vs Chemical Properties:
https://www.youtube.com/watch?v=gH1R87ahFvA

__________________________________
Law of Conservation of Mass:
https://www.youtube.com/watch?v=eBTNzScLUg4

Law of Definite Proportions:
https://www.youtube.com/watch?v=ly0ywRdVG_M

Law of Multiple Proportions:
https://www.youtube.com/watch?v=sxE95VOY-YY

Rutherford's Gold Foil Experiment:
https://www.youtube.com/watch?v=sNQsdrqsD_s

Cathode Ray Tube Experiment:
https://www.youtube.com/watch?v=i6zyPOSreCg

_________________________________
Atoms - Basic Introduction:
https://www.youtube.com/watch?v=acdkMeEKCNQ

Cations and Anions Explained:
https://www.youtube.com/watch?v=aAV2DMAI5f8

Diatomic Elements & Molecules:
https://www.youtube.com/watch?v=gi337Mx7wTc

Elements, Atoms, & Molecules:
https://www.youtube.com/watch?v=pSJeMJaCkVU

Protons, Neutrons, & Electrons:
https://www.youtube.com/watch?v=65dDZulPhtg

_______________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


so how many stereoisomers can you have

for this molecule well let's investigate

we have two chyal atoms so that means

that we can have a maximum number of

stereoisomers here being four but we

also have a plane of symmetry making

things a tad more complicated so how

many stere isomers do we have here then

well we have a miso isomer and we have a

pair of Anan tumers which means that we

have a total of three stereo isomers for

this molecule

How many stereoisomers can we have for this molecule? #organicchemistry #stereochemistry

🧪 More tutorials, practice questions, and organic chemistry workbooks 🧪
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let's double check your work so I'm just

going to start off here so we started

with a ch3 at the end which is correct

then we move on to CH so we have that CH

this is in parentheses telling us that

this belongs to the carbon prior which

is

good so we have that ch3 then continuing

we're at ch2 ch2 next that's bonded to

this other carbon which has technically

three of chch3s but at least looking at

this guy here it tells us that there are

two ch3s specifically bonded to that

carbon and this is the end has to

continue perfect

Condensed Structural Formula to Full Lewis Structure #organicchemistry #studywithme

Watch the full video on my youtube channel


now this next one is going to be going

over two different types of structures

that you're going to see so you might

run into the term acyclic versus cyclic

and it's not as scary as it sounds it

really just means there's no ring for

acyclic so we have that zigzag sort of

pattern and then if it's cyclic it has a

ring okay that's it

Acyclic Compounds vs Cyclic Compounds #organicchemistry #study


in this video

we're going to talk about two ways in

which we could calculate the root mean

square molecular speed of nitrogen gas

at 300 kelvin

so let's start with this formula it's

equal to 3

kt divided by the mass

now k

is boltzmann's constant and m is the

mass of a single nitrogen gas molecule

in kilograms

now using the periodic table the atomic

mass of nitrogen is 14.01

but in this problem we have two of them

so it's 28.02

atomic mass units

now we need to convert atomic mass units

to kilograms and the conversion is

pretty simple

and so here's what you need to do

you need to know that one atomic mass

unit

is

times 10 to the negative 27 kilograms

so let's multiply those two numbers

so you should get 4.651

times 10

to the negative 26 kilograms

so what we're going to do is take this

value plug it into this equation

boltzmann's constant is 1.38

times 10

to the negative 23

and the temperature is 300 kelvin

and now let's plug in the mass that we

have

so go ahead and type this in to your

calculator

so this will give you about 517

meters per second

and so that's the answer

now in chemistry

you might see this equation used more

often

3rt divided by capital m

which is the molar mass of n2

in kilograms per mole

now the atomic mass

we said was 14.01 times two

so that gave us the molar mass of 28.02

atomic mass units which is the same as

grams per mole

but we need to convert grams to

kilograms

and you need to know that one kilogram

is equal to a thousand grams

and so

28.02 divided by a thousand that's going

to be .02802

kilograms per mole

so this is the value that we're going to

plug in

to this formula

so the root mean square velocity is

going to be the square root of 3

and r is going to be 8.3145

and the temperature

is still 300 kelvin

divided by

the molar mass of 0.02802

so this will give you the same answer

of 517

meters per second

you

Molecular Speed of Gases Formula With Boltzmann's Constant

This physics video tutorial provides a basic introduction into the calculation of the molecular speed of gases.  It provides two formulas.  It explains how to calculate the root mean square velocity of a gas using a formula containing boltzmann's constant and one without it.

Boyle's Law Practice Problems:
https://www.youtube.com/watch?v=v8r_AU_TlPg

How Does a Bike Pump Work?
https://www.youtube.com/watch?v=I0b_i6-HLBA

Charles Law:
https://www.youtube.com/watch?v=uZ2d79NFx2w

Gay Lussac's Law:
https://www.youtube.com/watch?v=RszgzH_2A9k

Avogadro's Law:
https://www.youtube.com/watch?v=Czo2rIai5u0

Ideal Gas Law Problems:
https://www.youtube.com/watch?v=LZUs6nawHAk

_____________________________
Translational Kinetic Energy:
https://www.youtube.com/watch?v=bg5d5BFANVU

Mean Free Path and Free Time:
https://www.youtube.com/watch?v=ypK7h3NKe1E

RMS vs Average Speed:
https://www.youtube.com/watch?v=hBlwfG6IBLg

Molar Heat Capacities of Gases:
https://www.youtube.com/watch?v=SwMODT8m4Ls

Phase Diagrams of H2O & CO2:
https://www.youtube.com/watch?v=QrHlwgmMTq4

____________________________
Relative Humidity & Dew Point:
https://www.youtube.com/watch?v=BqFVtlQa-2w

Fick's Law of Diffusion:
https://www.youtube.com/watch?v=JgAKv1Zlgcw

Open Vs Closed Vs Isolated System:
https://www.youtube.com/watch?v=TFP6SvWPOQc

First Law of Thermodynamics:
https://www.youtube.com/watch?v=7Siv2NNCFag

Final Exams and Video Playlists:
https://www.video-tutor.net/

Physics PDF Worksheets:
https://www.video-tutor.net/physics-basic-introduction.html


in this video we're going to talk about

how to decompose a function

into two functions

so for instance let's say that

h of x

is equal to the square root of seven x

plus five

express the function h of x

as a composition

of two functions f of x and g of x

such that

h of x is f of g of x

so how can we determine f of x and g of

x given h of x

so notice that f is the function on the

outside and g is the function on the

inside

the stuff on the inside is seven x plus

five

so that's going to be g of x

this stuff on the outside is the square

root symbol and that's gonna be f of x

so f of x is the square root of x so if

we want to determine h of x

which is the composition of f and g

notice that if we take

g

and insert it

into f

that is if we replace this x with seven

x plus five

that will give us h of x

so here's the square root symbol but

without the x so replace the x with

seven x plus five

and that will give us the original

function

but these are the answers that we're

looking for g of x is seven x plus five

and f of x is the square root of x

so let me give you another example that

you can work on

so let's say that

h of x

is one divided by x plus three

go ahead and determine the outside

function

f of x

and also the inside function

g of x

the outside function is going to be one

over x

the inside function is simply x plus

three because if you replace x with x

plus three you're going to get one over

x plus three

and that's pretty straightforward so

these problems are not too bad

let's try another example

so what about this one let's say that

h of x

is the absolute value

of three x plus two

what's the outside function f of x

and the inside function g of x

we can see that on the inside we have

three x plus two so that's g of x

the outside is the absolute value of x

and that's it

and let's do one more example

let's say that h of x

is 2x

cubed plus 7x minus 3

raised to the fourth power

so what's the outside function f of x

and the inside function g of x

on the outside it's x to the fourth

power

on the inside two x cubed plus seven x

minus three

and they go

so that's g of x

and f of x

so that's it for this video thanks again

for watching and have a good day

you

Decomposing Functions - Composition of Functions

This precalculus video tutorial explains how to decompose a composite function into two functions f(x) and g(x).  This video contains plenty examples and practice problems on decomposing a composition of functions.

Functions - Free Formula Sheet:
https://bit.ly/3Ai8NZv

__________________________________
Introduction to Functions:
https://www.youtube.com/watch?v=DrEXTC6mIO8

Evaluating Functions:
https://www.youtube.com/watch?v=HyNie_PYgsY

Function Operations:
https://www.youtube.com/watch?v=3gaxVHVI4cI

Increasing and Decreasing Functions:
https://www.youtube.com/watch?v=Dyl7jPlJXOM

Relative Maximum & Minimum Values:
https://www.youtube.com/watch?v=GaltHJF6WyI

_____________________________________
Relations and Functions:
https://www.youtube.com/watch?v=wbBY2tTqXDA

Domain and Range from a Graph:
https://www.youtube.com/watch?v=KirGQOwjBVI

How To Find the Domain of a Function:
https://www.youtube.com/watch?v=djT6-YamHaA

Average Rate of Change of a Function:
https://www.youtube.com/watch?v=f_Q0qlwlclQ

The Difference Quotient of a Function:
https://www.youtube.com/watch?v=qQgVomi8lCc

_____________________________________
Evaluating Piecewise Functions:
https://www.youtube.com/watch?v=OYOXMyFKotc

Graphing Piecewise Functions:
https://www.youtube.com/watch?v=Uzw9tsGq2Pw

Composite Functions:
https://www.youtube.com/watch?v=ZFPkQkURSxk

How To Evaluate Composite Functions:
https://www.youtube.com/watch?v=6vQxIG4lJ3w

Composite Functions - Data Table:
https://www.youtube.com/watch?v=6vQxIG4lJ3w

Comp. of 3 Functions - Data Table:
https://www.youtube.com/watch?v=Ote1KvW6BXw

Decomposing Functions:
https://www.youtube.com/watch?v=NmfaC7etZms

_________________________________
Introduction to Inverse Functions:
https://www.youtube.com/watch?v=TN4ybFiuV3k

How To Find The Inverse of a Function:
https://www.youtube.com/watch?v=2zeYEx4eTdc

Verifying Inverse Functions:
https://www.youtube.com/watch?v=6QamgSPprjA

Horizontal Line Test - 1 to 1 Functions:
https://www.youtube.com/watch?v=6u9Qh1Vi_Qw

Vertical Line Test:
https://www.youtube.com/watch?v=Mxe2lX1htNk

Graphing Inverse Functions:
https://www.youtube.com/watch?v=ukEtad_aml4

Composite and Inverse Functions:
https://www.youtube.com/watch?v=GEgFmxxOJno

__________________________________
Even and Odd Functions:
https://www.youtube.com/watch?v=fKyBOLsqRlo

Transformations of Functions:
https://www.youtube.com/watch?v=Tmdrjs9xufc

Linear Functions:
https://www.youtube.com/watch?v=BtcKotD6Ni8

Functions and Graphs - Problems:
https://www.youtube.com/watch?v=kvU9sOzT2mk

Functions - Test Review:
https://www.youtube.com/watch?v=1xATmTI-YY8

______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


now let's go back to the unit circle

in the unit circle we said that

it's a circle that has a radius of one

so if we were to draw a triangle

the hypotenuse of the triangle will have

a value of 1 because that's the radius

that's the distance between the center

of the circle and a point on a circle

now this is x and this is y

and on the inside we have the angle

theta

now let's see if that angle corresponds

to an angle of 45 degrees

well actually let's make it 30.

let's say theta is 30.

so that would correspond to a point

of

root 3 over 2 that's the x value and the

y value would be

one

half now we said that sine of theta

when we have a unit circle

and keep in mind this will be true when

r is one if r is not one the equation

will change which we'll talk about later

but for a unit circle

sine theta is simply y

so in this case sine 30 is the y

coordinate one half

cosine theta

we said it's x

now there are some other trigonometric

functions they need to know there's six

of them these are the first two

tangent theta

is sine

divided by cosine

so tangent theta is y divided by x

cosecant theta

is one over y

and secant theta

is one over x

cotangent theta is x divided by y

so those are the six trigonometric

functions

that you need to be aware of

The Six Trigonometric Functions, Basic Introduction, Trigonometry

This trigonometry video tutorial provides a basic introduction into the six trigonometric functions such as sine, cosine, tangent, cotangent, secant, and cosecant.  It provides the equations and formulas associated with these trigonometric functions as they relate to the unit circle.

Trigonometry Final Exam Review:
https://www.youtube.com/watch?v=OAsbx4TEnL0

Trigonometry - Free Formula Sheet:
https://bit.ly/47diggI

_______________________________
Trigonometry - Basic Introduction:
https://www.youtube.com/watch?v=g8VCHoSk5_o

The Unit Circle:
https://www.youtube.com/watch?v=57VrEiEPD1I

How To Remember the Unit Circle Fast:
https://www.youtube.com/watch?v=gdJq1QunN-o

Reference Angles:
https://www.youtube.com/watch?v=E-xFXpVo14o

How To Solve Right Triangles:
https://www.youtube.com/watch?v=i3bjEOA5_zc

_____________________________
Reciprocal Identities:
https://www.youtube.com/watch?v=UeuuFqbTYgA

Quotient Identities:
https://www.youtube.com/watch?v=7PVKbyLFY5U

Even and Odd Trigonometric Identities:
https://www.youtube.com/watch?v=5p8hokJ3Cqo

Pythagorean Identities:
https://www.youtube.com/watch?v=TpADRvW8zm8

The Pythagorean Theorem:
https://www.youtube.com/watch?v=pbf4lcJhIfI

Trig Functions - Periodic Properties:
https://www.youtube.com/watch?v=8Z60_yXX4xA

________________________________
The Exact Value of Trig Functions:
https://www.youtube.com/watch?v=bTdjcvm6pPo

Special Right Triangles - 30 60 90:
https://www.youtube.com/watch?v=p70UBGCHZrQ

Special Patterns - Pythagorean Theorem:
https://www.youtube.com/watch?v=MeBcJPdjeI4

Cofunction Identities:
https://www.youtube.com/watch?v=35fxto48HZY

Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections


so in this case we'd be looking at

getting like cuz The Spectator will

leave the spect ad will leave and then

we'll just have the ether left good

which would be this one right good and

actually I'm going to let's switch it

just cuz this is going true the other

way I know it's upside down that's fine

like that good

Going from an Alkyl Halide to an Ether #organicchemistry #studywithme

💯 Start Understanding Ochem Today for Free! 🎉
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