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What is the molality of a solution containing 48.2g of CaO in 392g of solvent?

What is the molality of a solution containing 48.2g of CaO in 392g of solvent?

Chemistry
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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Molality and mole fraction problems
**Practice Questions on Molarity and Molality** 1. **What is the molality of a solution containing 48.2g of CaO in 392g of solvent?** 2. **What is the molality of a solution with 4.79 moles of solute in 2172g of solvent?** 3. **What is the mole fraction of solute and solvent in a solution made by mixing 2.78mol of salt in 8.34mol of water?** 4. **What is the mole fraction of solute and solvent in a solution made by mixing 167g C₃H₈ and 520g H₂O?** 5. **What is the boiling point of a 1.42 molal MgS solution?** (K<sub>b</sub> of water = 0.512°C/molality) 6. **What is the freezing point of a 1.83 molal C₆H₁₄ solution?** (K<sub>f</sub> of water = 1.86°C/molality)
Transcribed Image Text:**Practice Questions on Molarity and Molality** 1. **What is the molality of a solution containing 48.2g of CaO in 392g of solvent?** 2. **What is the molality of a solution with 4.79 moles of solute in 2172g of solvent?** 3. **What is the mole fraction of solute and solvent in a solution made by mixing 2.78mol of salt in 8.34mol of water?** 4. **What is the mole fraction of solute and solvent in a solution made by mixing 167g C₃H₈ and 520g H₂O?** 5. **What is the boiling point of a 1.42 molal MgS solution?** (K<sub>b</sub> of water = 0.512°C/molality) 6. **What is the freezing point of a 1.83 molal C₆H₁₄ solution?** (K<sub>f</sub> of water = 1.86°C/molality)
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