What is a lab that I can do that encompasses these topics using only household chemicals. Make sure the lab and the questions in the lab connect to all of the topics and guide students through an exploration to construct understanding of the content. Also make sure to ask a question about each topic and connect each questions to the lab. Also make sure that for each lab that you don’t use unnecesary materials and that are easy and quick to clean up. Make sure that lab’s don’t require any special lab equipment and can be done with only house hold things. Use only these household chemicals: table sugar, salt, vinegar and baking soda.
TOPIC 0A: Chemistry, Scientific Method and Chemical & Physical Change
TOPIC 0B: Measurement
TOPIC 0C: Atomic Theory
TOPIC 0D: Nomenclature
Here are example labs:
AP LAB 00B: Density (Significant Figures)
Aim To calculate the density of three liquids
Apparatus 10 mL graduated cylinder, electronic balance, pipets
Chemicals Water, rubbing alcohol (propan-2-ol) and vinegar (ethanoic acid)
Method
1. Fill a new pipet with water, dry the outside of the pipet and record the mass of the entire unit
(recording the mass to two decimal places).
2. Empty the water into the graduated cylinder and record the volume (recording the volume to only one
decimal place).
3. Record the mass of the empty pipet (recording the mass to two decimal places).
4. Calculate the density (in g/mL) of water, observing the rules for significant figures.
5. Repeat steps #1 through #4 twice. Then determine the average density of water, again
observing the rules for significant figures.
6. Repeat steps #1 through #5 using rubbing alcohol instead of water, and then again using
vinegar instead of water.
Conclusion/Calculation
1. What is the purpose of repeating each experiment three times?
2. Why is it important to dry the outside of the pipet each time before massing it?
3. Calculate a % error in each experiment, by using a reliable reference source for the actual value of
the density of the liquids used.
4. In a similar experiment, a student attempts to determine the density of propan-2-ol but incorrectly
records the volume of alcohol in the graduated cylinder as being 4.5 mL when it should have been
recorded as 5.4 mL. Comment on the effect that this error has on the calculated density of propan-2-
ol.
AP LAB 00D: Inorganic Nomenclature
Aim To identify inorganic compounds by name and formula
Apparatus 24 sealed test tubes containing various inorganic compounds. Label with formula
or name for each tube.
Chemicals Various
Method
1. Visit each set of chemicals and read the name or formula given on the card for each bottle
in the set.
2. Record the name or formula in your results table and fill in the missing name or formula for
each bottle in the set.
3. Write a brief description of each compound in the set.
4. Complete the results table by finding something that all three compounds in each set have
in common with one another.
1. Describe a feature that all ionic compounds have in common.
2. Ionic compounds are usually formed between which types of elements?
3. Complete the table below.
GROUP 1 2 13 15 16 17
CHARGES
ON IONS
4. What type of elements exhibit the tendancy to form metal ions of more than one positive
charge? How are these different charges denoted when naming compounds?