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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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![**Title: Calculating Molarity of Solutions**
**Objective:**
Learn how to calculate the molarity of two solutions using given data.
---
**Problem Statement:**
Calculate the molarity of the two solutions.
1. **First Solution:**
- Contains 0.450 mol of NaOH in 1.95 L of solution.
- **Molarity:** [ ________ ] M
2. **Second Solution:**
- Contains 24.5 g of NaCl in 855 mL of solution.
- **Molarity:** [ ________ ] M
---
**Instructions:**
1. **Understanding Molarity:**
- Molarity (\(M\)) is a measure of concentration representing the number of moles of a solute per liter of solution. The formula to calculate molarity is:
\[
M = \frac{\text{moles of solute}}{\text{liters of solution}}
\]
2. **For the First Solution:**
- Directly apply the formula using the given moles of NaOH and volume in liters.
3. **For the Second Solution:**
- Convert the mass of NaCl to moles using its molar mass (approximately 58.44 g/mol).
- Convert the volume from milliliters to liters.
- Apply the molarity formula.
---
**Note:**
Remember to show all calculation steps clearly for better understanding.](https://content.bartleby.com/qna-images/question/abe9e786-be4a-454e-b2cf-16d08b96c793/9c8d7957-0e5e-4c13-bcf8-71e5855dc86d/9ig8ef_thumbnail.jpeg)
Transcribed Image Text:**Title: Calculating Molarity of Solutions**
**Objective:**
Learn how to calculate the molarity of two solutions using given data.
---
**Problem Statement:**
Calculate the molarity of the two solutions.
1. **First Solution:**
- Contains 0.450 mol of NaOH in 1.95 L of solution.
- **Molarity:** [ ________ ] M
2. **Second Solution:**
- Contains 24.5 g of NaCl in 855 mL of solution.
- **Molarity:** [ ________ ] M
---
**Instructions:**
1. **Understanding Molarity:**
- Molarity (\(M\)) is a measure of concentration representing the number of moles of a solute per liter of solution. The formula to calculate molarity is:
\[
M = \frac{\text{moles of solute}}{\text{liters of solution}}
\]
2. **For the First Solution:**
- Directly apply the formula using the given moles of NaOH and volume in liters.
3. **For the Second Solution:**
- Convert the mass of NaCl to moles using its molar mass (approximately 58.44 g/mol).
- Convert the volume from milliliters to liters.
- Apply the molarity formula.
---
**Note:**
Remember to show all calculation steps clearly for better understanding.
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