The vapor pressure of several solutions of water-propanol (C3H;OH) were determined at various compositions, and the following data of vapor pressure were collected at 45°C. Vapor Pressure of Solution (torr) Mole fraction of H20 XH20- 74.0 0.37 80.2 0.54 81.6 0.69 80.6 1.00 72.0 (a) Calculate the vapor pressure at 45°C for a solution that contains 46.0% of propanol and 54.0% water, by mole, assuming an ideal solution. (b) Determine whether water and propanol form an ideal solution, non-ideal solution with positive deviation, or non-ideal solution with negative deviation. (c) Are the overall intermolecular forces in the mixture stronger or weaker than those in pure liquids combined? Explain. (d) Which liquid has a higher boiling point, water or propanol? Explain. (e) For the three mixtures shown in the table, which one is expected to have the lowest boiling point? Explain.

The vapor pressure of several solutions of water-propanol (C3H;OH) were determined at various compositions, and the following data of vapor pressure were collected at 45°C. Vapor Pressure of Solution (torr) Mole fraction of H20 XH20- 74.0 0.37 80.2 0.54 81.6 0.69 80.6 1.00 72.0 (a) Calculate the vapor pressure at 45°C for a solution that contains 46.0% of propanol and 54.0% water, by mole, assuming an ideal solution. (b) Determine whether water and propanol form an ideal solution, non-ideal solution with positive deviation, or non-ideal solution with negative deviation. (c) Are the overall intermolecular forces in the mixture stronger or weaker than those in pure liquids combined? Explain. (d) Which liquid has a higher boiling point, water or propanol? Explain. (e) For the three mixtures shown in the table, which one is expected to have the lowest boiling point? Explain.

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

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 70E: The vapor pressures of several solutions of water-propanol (CH3CH2CH2OH) were determined at various...

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