An ideal solution is composed of methanol (CH;OH) and propanol (C3H;OH), and it has a vapor pressure of 186 torr at 40°C. The vapor pressure of pure methanol and propanol at 40°C are 303 torr and 44.6 torr, respectively. What are the mole fractions of methanol and propanol in the solution?

An ideal solution is composed of methanol (CH;OH) and propanol (C3H;OH), and it has a vapor pressure of 186 torr at 40°C. The vapor pressure of pure methanol and propanol at 40°C are 303 torr and 44.6 torr, respectively. What are the mole fractions of methanol and propanol in the solution?

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter12: Solutions

Section: Chapter Questions

Problem 12.26QE

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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

An ideal solution is composed of methanol (CH3OH) and propanol (C;H;OH), and it has a vapor
pressure of 186 torr at 40°C. The vapor pressure of pure methanol and propanol at 40°C are 303 torr
and 44.6 torr, respectively. What are the mole fractions of methanol and propanol in the solution?

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