User: You are given access to make searches on the Internet. The format for making a search is: 1. The user sends a message. 2. You will decide whether to make a search. If you choose to make a search, you will output a single message, containing the word 
 (EXACTLY AS IT IS GIVEN TO YOU), followed by ONLY your web search query. After outputting your search query, you MUST output the token 
 (EXACTLY AS IT IS GIVEN TO YOU) to denote the end of the search query. Keep your search query concise as there is a 400 characters limit.
The system will then append the web search results at the end of the user message, starting with the token 
. Take note that the user CANNOT ACCESS the content under 
 - YOU should incorporate these results into your response. Additionally, If the token 
 is present in the user's message, then you MUST NOT request another web search.

IMPORTANT! You should choose to search the web ONLY if ANY of the following circumstances are met:
1. User is asking about current events or something that requires real-time information (news, sports scores, 'latest' information, etc.)
2. User is asking about some term you are unfamiliar with (e.g. if it's a little-known term, if it's a person you don't know well, etc.)
3. User is asking about anything that involves numerical facts (e.g. distances between places, population count, sizes, date and time, etc.)
4. User explicitly asks you to search or provide links to references.
If the user's query does NOT require a web search, YOU MUST NEVER run one for no reason.
However, NEVER refuse to search the web if the user asks you to provide such information.

When using web search results, you are encouraged to cite references where appropriate, using inline links in standard markdown format.
You are also allowed to make use of web search results from previous messages, if they are STRONGLY RELEVANT to the current message.

When you are not running a web search, respond completely as per normal - there is NO NEED to mention that you're not searching. 
Do your best to be informative. However, you MUST NOT make up any information. If you think you might not know something, search for it.

Assistant: Understood. I will strictly follow these instructions in this conversation.
User: how to prepare naoh in the lab?


 for "how to prepare naoh in the lab?":

1.
URL: https://www.thoughtco.com/prepare-sodium-hydroxide-or-naoh-solution-608150
Title: How to Prepare a Sodium Hydroxide or NaOH Solution - ThoughtCo
Content: Amount of <b>NaOH</b> <b>to</b> Make Sodium Hydroxide Solution . <b>Prepare</b> sodium hydroxide solutions using this handy reference table which lists the amount of solute (solid <b>NaOH</b>) used to make 1 L of base solution. Follow these <b>lab</b> safety guidelines: Don't touch sodium hydroxide! It is caustic and could cause chemical burns.

2.
URL: https://scienceinfo.com/how-to-prepare-1n-naoh-solution/
Title: How to Prepare 1N NaOH Solution - Science Info
Content: Procedure for Preparing 1N <b>NaOH</b> Solution. Step 1: Using the digital balance weigh accurately 40g of sodium hydroxide (<b>NaOH</b>). Step 2: Add precisely weighed <b>NaOH</b> <b>to</b> 500ml of distilled water in the volumetric flask. Step 3: Using the stirrer dissolve <b>NaOH</b> is the water. Step 4: Once the sodium hydroxide is dissolved let it cool to ambient temperature.

3.
URL: https://chem.libretexts.org/Courses/Prince_Georges_Community_College/CHEM_2000%3A_Chemistry_for_Engineers_(Sinex)/Unit_4%3A_Nomenclature_and_Reactions/Chapter_12%3A_Aqueous_Reactions/Chapter_12.1%3A_Preparing_Solutions
Title: Chapter 12.1: Preparing Solutions - Chemistry LibreTexts
Content: 0.21 M <b>NaOH</b>; 3.7 M (CH 3)CHOH; 0.032 M In(NO 3) 3; Given: molarity. Asked for: concentrations. Strategy: A Classify each compound as either a strong electrolyte or a nonelectrolyte. B If the compound is a nonelectrolyte, its concentration is the same as the molarity of the solution. If the compound is a strong electrolyte, determine the number ...

4.
URL: https://wisc.pb.unizin.org/analyticalchemlab/chapter/naoh-standardization/
Title: Preparation of a Standard NaOH Solution - UW Madison Manual of ...
Content: Save the standardized <b>NaOH</b> solution from today's <b>lab</b> <b>to</b> use for subsequent experiments in the <b>lab</b> schedule. Learning Objectives. Hone skills with the analytical balance and volumetric glassware by preparing a primary standard solution. Use this prepared primary standard to accurately standardize a <b>NaOH</b> solution to four significant figures.

5.
URL: https://www.wikihow.com/Make-Sodium-Hydroxide-Chemically
Title: How to Make Sodium Hydroxide Chemically: 11 Steps (with Pictures) - wikiHow
Content: Pour your <b>NaOH</b> solution into an appropriate container. Purchase a new chemical container rated for <b>NaOH</b> (rating systems vary per country) along with a chemically-approved funnel. Slowly pour the cold <b>NaOH</b> into the container underneath the fume hood. Be sure to wear chemical gloves and discard any extra to a <b>lab</b>-provided waste container.

6.
URL: https://chem.libretexts.org/Courses/can/CHEM_210%3A_General_Chemistry_I_(An_Atoms_Up_Approach)/11%3A_Solutions_Concentration_and_Dilution/11.04%3A_Solution_Preparation
Title: 11.4: Solution Preparation - Chemistry LibreTexts
Content: <b>To</b> <b>prepare</b> <b>the</b> solution, place 4.0 grams of <b>NaOH</b>, weighed to the nearest tenth of a gram, in a bottle or beaker and add approximately 500 mL of water. (b) Since the desired concentration of Cu 2 + is given to four significant figures, we must measure precisely the mass of Cu metal and the final solution volume.

7.
URL: https://scienceinfo.com/sodium-hydroxide-naoh/
Title: Sodium Hydroxide (NaOH): Formula, Properties, Preparation, Uses
Content: (ii) The Reaction of <b>NaOH</b> With Acidic Oxides. 2 <b>NaOH</b> + CO 2 → Na 2 CO 3 + H 2 O. 2 <b>NaOH</b> + SO 2 → Na 2 SO 3 + H 2 O. 6 <b>NaOH</b> + P 2 O 5 → 2 Na 3 PO 4 + 3 H 2 O (iii) The Reaction of <b>NaOH</b> With Ammonium Salt. When a solution made up of sodium hydroxide and an ammonium salt is heated the process results in the liberation of Ammonia gas. <b>NaOH</b> ...

8.
URL: https://www.cerritos.edu/chemistry/_includes/docs/Chem_111/Lab/Exp%2012%20-A%20Standardization%20of%20NaOH%20F%2008.pdf
Title: <span class="result__type">PDF</span> Experiment 12 A: Standardization of A Sodium Hydroxide Solution ...
Content: STOPPER AND SAVE YOUR <b>NaOH</b> SOLUTION FOR USE IN EXPERIMENT 12B !!!!! E. CALCULATION 1. Calculate the molar concentration of the sodium hydroxide solution using your data for each run. 2. Calculate the average molar concentration of the sodium hydroxide solution. THIS IS THE VALUE THAT YOU WILL USE IN EXPERIMENT 12B. 3.

9.
URL: https://www.extension.iastate.edu/wine/wp-content/uploads/2021/09/Preparing-Standard-Sodium-Hydroxide-Solution-PDF.pdf
Title: <span class="result__type">PDF</span> Preparing Standard Sodium Hydroxide Solution* - Iowa State University ...
Content: It is written for wine <b>lab</b> workers with no background in chemistry. In a wine laboratory, analyzing wine for TA, VA and S02 involves the use of a sodium hydroxide (<b>NaOH</b>) reagent. Winemakers usually buy sodium hydroxide solution of a known concentration (usually 0.1 Normal). This reagent is relatively unstable and its concentration changes over ...

10.
URL: https://www.laboratorynotes.com/preparation-of-10-m-sodium-hydroxide-naoh-solution/
Title: Preparation of 10 M Sodium Hydroxide (NaOH) Solution
Content: <b>The</b> molecular weight of <b>NaOH</b> is 40. This means you need to dissolve 40 g of <b>NaOH</b> <b>in</b> water to obtain a 1 liter of 1M (or 1N) <b>NaOH</b> solution. To <b>prepare</b> a 10M <b>NaOH</b> solution, you need to dissolve 10 times more <b>NaOH</b> i.e., 400 g of <b>NaOH</b> for 1 L solution. Here we will <b>prepare</b> 100 ml of 10M <b>NaOH</b> solution. Therefore, we need to take 40 g of <b>NaOH</b>.

11.
URL: https://www.flinnsci.com/api/library/Download/18ce587821c24fb3b0ad7d878bd6a3d9
Title: Laboratory Solution • Basic concepts of preparing solutions Preparation ...
Content: solution. To <b>prepare</b> laboratory solutions, usually a given volume and molarity are required. To determine molarity, the formula weight or molar mass of the solute is needed. The following exam - ples illustrate the calculations for preparing solutions. If starting with a solid, use the following procedure:

12.
URL: https://www.laboratorynotes.com/preparation-of-10-w-v-sodium-hydroxide-naoh-solution/
Title: Preparation of 10% (w/v) Sodium Hydroxide (NaOH) Solution
Content: 10% <b>NaOH</b> solution. OBJECTIVE Preparation of 100 ml of 10% (w/v) <b>NaOH</b> solution in water. PREPARATION. Use personal protective equipment (<b>lab</b> coat, gloves, goggles, etc) for your safety and follow the guidelines of your institute. Step 1: To <b>prepare</b> 100 ml of 10% <b>NaOH</b> solution, weigh out 10 g of <b>NaOH</b> (molecular weight: 40). Precaution:

13.
URL: https://www.webpages.uidaho.edu/ifcheng/Chem%20253/labs/Experiment%203.pdf
Title: <span class="result__type">PDF</span> Preparation of A Standard Sodium Hydroxide Solution, Determination of ...
Content: <b>Lab</b> 1 Dry KHP and unknown at 105-110 °C for at least two hours. <b>Prepare</b> <b>NaOH</b> and HCl solutions. Standardize. If there is time, do your calculations before leaving the <b>lab</b>. <b>Lab</b> 2 Titrate your impure KHP sample. Do your calculations before leaving the <b>lab</b>. <b>In</b> this experiment, you will <b>prepare</b> standard solutions of sodium hydroxide (<b>NaOH</b>) and

14.
URL: https://www1.udel.edu/chem/beebe/Chem120/Chem%20120%20-%20LAB%201.pdf
Title: <span class="result__type">PDF</span> Chemistry 120: Experiment 1 - University of Delaware
Content: Chem 120 Laboratory Manual Quantitative Chemistry II <b>Lab</b> 1 9. Add two or three drops of phenolphthalein to each flask, and titrate each solution to the end point with the sodium hydroxide solution. 11. STORE THE HYDROCHLORIC ACID SOLUTION IN THE PLACE INDICATED BY THE TEACHING ASSISTANT. You are depending on the stability of both the <b>NaOH</b>

15.
URL: https://www.scribd.com/document/448194037/LAB-REPORT-PREPARATION-OF-STANDARD-SOLUTION
Title: Lab Report Preparation of Standard Solution | PDF - Scribd
Content: <b>The</b> document describes the preparation and standardization of sodium hydroxide (<b>NaOH</b>) solutions. It involves: 1) Preparing a 0.6123 mol/L <b>NaOH</b> solution by weighing solid <b>NaOH</b> and dissolving it in water. 2) Diluting this solution to make a 0.1531 mol/L solution. 3) Titrating the diluted <b>NaOH</b> solution against a 0.1 M hydrochloric acid (HCl) solution to determine its concentration of 0.1616 M. 4 ...


Assistant: