II Pre-Lab Exercises 1. Describe how y ou would make 500.0 ml. of a 0.0500M solution of NaOH from pure NaOH crystals. Show the calculations needed, and describe how you would make the solution.
II Pre-Lab Exercises 1. Describe how y ou would make 500.0 ml. of a 0.0500M solution of NaOH from pure NaOH crystals. Show the calculations needed, and describe how you would make the solution.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
Related questions
Question
![## Pre-Lab Exercises
### 1. Preparation of a 0.0500M NaOH Solution
**Objective:**
Describe how you would prepare 500.0 mL of a 0.0500M solution of sodium hydroxide (NaOH) from pure NaOH crystals. Include necessary calculations and describe the preparation procedure.
**Procedure:**
- **Calculate the Mass of NaOH Required:**
1. Use the formula:
\[
\text{Molarity (M)} = \frac{\text{moles of solute}}{\text{liters of solution}}
\]
2. Rearrange to find moles:
\[
\text{moles of NaOH} = \text{Molarity} \times \text{Volume (L)}
\]
3. Moles of NaOH required = 0.0500 mol/L × 0.500 L = 0.0250 mol
4. Calculate the mass of NaOH in grams using its molar mass (approximately 40.00 g/mol):
\[
\text{mass of NaOH} = \text{moles} \times \text{molar mass}
\]
\[
\text{mass of NaOH} = 0.0250 \text{ mol} \times 40.00 \text{ g/mol} = 1.000 \text{ g}
\]
- **Prepare the Solution:**
1. Weigh 1.000 g of pure NaOH crystals accurately using a balance.
2. Dissolve the NaOH crystals in a small volume of distilled water in a beaker.
3. Transfer the solution to a 500.0 mL volumetric flask.
4. Add distilled water to the flask until the bottom of the meniscus is at the 500.0 mL mark.
5. Cap the flask and invert it several times to ensure thorough mixing.
**Conclusion:**
By following the above steps, a 0.0500M NaOH solution is successfully prepared using proper laboratory techniques.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3fa767d5-cae8-4199-a4ed-03fc440d66d2%2F16080b49-cb74-4dc1-8113-de7a11c0723b%2F2oz8y8b_processed.jpeg&w=3840&q=75)
Transcribed Image Text:## Pre-Lab Exercises
### 1. Preparation of a 0.0500M NaOH Solution
**Objective:**
Describe how you would prepare 500.0 mL of a 0.0500M solution of sodium hydroxide (NaOH) from pure NaOH crystals. Include necessary calculations and describe the preparation procedure.
**Procedure:**
- **Calculate the Mass of NaOH Required:**
1. Use the formula:
\[
\text{Molarity (M)} = \frac{\text{moles of solute}}{\text{liters of solution}}
\]
2. Rearrange to find moles:
\[
\text{moles of NaOH} = \text{Molarity} \times \text{Volume (L)}
\]
3. Moles of NaOH required = 0.0500 mol/L × 0.500 L = 0.0250 mol
4. Calculate the mass of NaOH in grams using its molar mass (approximately 40.00 g/mol):
\[
\text{mass of NaOH} = \text{moles} \times \text{molar mass}
\]
\[
\text{mass of NaOH} = 0.0250 \text{ mol} \times 40.00 \text{ g/mol} = 1.000 \text{ g}
\]
- **Prepare the Solution:**
1. Weigh 1.000 g of pure NaOH crystals accurately using a balance.
2. Dissolve the NaOH crystals in a small volume of distilled water in a beaker.
3. Transfer the solution to a 500.0 mL volumetric flask.
4. Add distilled water to the flask until the bottom of the meniscus is at the 500.0 mL mark.
5. Cap the flask and invert it several times to ensure thorough mixing.
**Conclusion:**
By following the above steps, a 0.0500M NaOH solution is successfully prepared using proper laboratory techniques.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY