**Understanding Vapor Pressure of an Aqueous Solution:****Problem Statement:**What is the vapor pressure (kPa) of water at 25°C above an aqueous solution that is 10.6% by mass of glucose (molar mass = 180.2 g/mol)? The vapor pressure of pure water at 25°C is 3.17 kPa.**Options:**- **a.** 3.168- **b.** 0.037- **c.** 3.133- **d.** 0.081- **e.** 3.064**Explanation:**To solve this problem, one must use the concept of the colligative properties of solutions, specifically Raoult's Law, which relates the vapor pressure of a solution to the vapor pressure of the pure solvent and the mole fraction of the solvent in the solution.**Steps to Calculate:**1. Calculate the mass of glucose (solute) and water (solvent) in the solution: - Assume we have 100 g of the solution. - Mass of glucose = 10.6 g - Mass of water = 100 g - 10.6 g = 89.4 g2. Convert these masses to moles: - Moles of glucose = \(\frac{10.6 \, \text{g}}{180.2 \, \text{g/mol}} = 0.0588 \, \text{moles}\) - Moles of water = \(\frac{89.4 \, \text{g}}{18 \, \text{g/mol}} \approx 4.9667 \, \text{moles}\)3. Calculate the mole fraction of water (solvent): - Mole fraction of water \( (\chi_{water}) = \frac{\text{moles of water}}{\text{total moles}} \) - Total moles = 0.0588 mol (glucose) + 4.9667 mol (water) = 5.0255 mol - Mole fraction of water \( (\chi_{water}) = \frac{4.9667}{5.0255} \approx 0.9883 \)4. Use Raoult's Law to find the vapor pressure of the solution: - \(P_{solution

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What is the vapor pressure (kPa) of water at 25 °C above an aqueous solution that is 10.6% by mass of glucose (molar mass = 180.2 g/mol)? The vapor pressure of pure water at 25 °C is 3.17 kPa. а. 3.168 b. 0.037 с. 3.133 d. 0.081 e. 3.064

What is the vapor pressure (kPa) of water at 25 °C above an aqueous solution that is 10.6% by mass of glucose (molar mass = 180.2 g/mol)? The vapor pressure of pure water at 25 °C is 3.17 kPa. а. 3.168 b. 0.037 с. 3.133 d. 0.081 e. 3.064

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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