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...
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![### Chemistry Problem: Calculating Molarity
A chemist prepared a solution by dissolving 85.0 g of AgNO₃ in enough water to make 350.0 mL of solution. What is the molarity of the solution?
- **Molar Mass of Silver Nitrate (AgNO₃):** 169.88 g/mol
#### Explanation:
To find the molarity, use the formula:
\[ \text{Molarity} (M) = \frac{\text{moles of solute}}{\text{liters of solution}} \]
1. **Calculate Moles of AgNO₃:**
\[ \text{Moles of AgNO₃} = \frac{\text{mass}}{\text{molar mass}} = \frac{85.0 \, \text{g}}{169.88 \, \text{g/mol}} \]
2. **Convert Volume to Liters:**
\[ 350.0 \, \text{mL} = 0.350 \, \text{L} \]
3. **Calculate Molarity:**
\[ M = \frac{\text{moles of AgNO₃}}{0.350 \, \text{L}} \]
This setup guides students through calculating the molarity of a solution using the given mass and volume.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F377a7caf-b074-415b-a7a2-489899521086%2F5ecd3939-c423-4134-b117-53758005bf5f%2Fhyg5jo.jpeg&w=3840&q=75)
Transcribed Image Text:### Chemistry Problem: Calculating Molarity
A chemist prepared a solution by dissolving 85.0 g of AgNO₃ in enough water to make 350.0 mL of solution. What is the molarity of the solution?
- **Molar Mass of Silver Nitrate (AgNO₃):** 169.88 g/mol
#### Explanation:
To find the molarity, use the formula:
\[ \text{Molarity} (M) = \frac{\text{moles of solute}}{\text{liters of solution}} \]
1. **Calculate Moles of AgNO₃:**
\[ \text{Moles of AgNO₃} = \frac{\text{mass}}{\text{molar mass}} = \frac{85.0 \, \text{g}}{169.88 \, \text{g/mol}} \]
2. **Convert Volume to Liters:**
\[ 350.0 \, \text{mL} = 0.350 \, \text{L} \]
3. **Calculate Molarity:**
\[ M = \frac{\text{moles of AgNO₃}}{0.350 \, \text{L}} \]
This setup guides students through calculating the molarity of a solution using the given mass and volume.
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