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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Transcribed Image Text:### Determining Molarity of a Solution
**Problem:**
What is the molarity of a solution prepared by using 25g of NaCl in 165ml of solution?
**Solution Details:**
To find the molarity, we need to determine the number of moles of NaCl and the volume of the solution in liters.
1. **Calculate Molar Mass of NaCl:**
- Sodium (Na): 22.99 g/mol
- Chlorine (Cl): 35.45 g/mol
- Molar mass of NaCl = 22.99 + 35.45 = 58.44 g/mol
2. **Convert mass to moles:**
- Moles of NaCl = Mass / Molar Mass = 25g / 58.44 g/mol
3. **Convert volume to liters:**
- Volume in liters = 165ml / 1000 = 0.165 L
4. **Calculate molarity (M):**
- Molarity (M) = Moles of solute / Volume of solution in liters
Implement these calculations to determine the molarity of the NaCl solution.
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