At 25°C, the vapor pressure of pure benzene, C6H6, is 96.0 torr. The vapor pressure of pure ethanol, CH;OH, is 44.0 torr at the same temperature. Assuming ideal behavior, calculate the vapor pressure at 25°C of a solution that contains an equal mass of each.

At 25°C, the vapor pressure of pure benzene, C6H6, is 96.0 torr. The vapor pressure of pure ethanol, CH;OH, is 44.0 torr at the same temperature. Assuming ideal behavior, calculate the vapor pressure at 25°C of a solution that contains an equal mass of each.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 42P

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

At 25°C, the vapor pressure of pure benzene, C6H6, is 96.0 torr. The vapor pressure of pure ethanol,
CH;OH, is 44.0 torr at the same temperature. Assuming ideal behavior, calculate the vapor pressure at
25°C of a solution that contains an equal mass of each.

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