"F0rmat: Giv3n: Requir3d: Equati0n: Soluti0n: Answ3r: 1A. Vapor Pressure LoweringHow much a dissolved solute lowers the vapor pressure of a solvent depends on the soluteconcentration and is expressed by Raoult's Law which states that the vapor pressure of a component ina solution depends on its mole fraction times the vapor pressure exerted by the pure component:Psolution = (Xsolvent) (Psolvent)where:Psol'n = vapor pressure of the solution caused by the solventXsolv = mole fraction of solvent in the solutionPsolv = vapor pressure of pure solvent at the same temperatureNote: pressure must be expressed in Torr (1 torr = 1 mmHg)SP. 4If 0.340 mol of a non-volatile nonelectrolyte are dissolved in 3.00 mol of water (H₂O), what is the vapor pressureof the resulting solution? (The vapor pressure of pure water is 23.8 torr at 25.0 °C)SP. 5A chemist prepared a 25% by weight of glucose (C6H12O22) solution in water at 29°C. Determine the vaporpressure lowering of the solution. The vapor pressure of pure water at 29°C is 30 torr.SP. 6The vapor pressure of water above a solution of water and a nonvolatile solute at 25.0°C is 19.3 mmHg. Whatis the mole fraction of the solute? (The vapor pressure of pure water is 23.8 torr at 25.0°C)

SP.4 We have to determine the vapor pressure of the solution formed when 0.340 mol of a…

If 0.340 mol of a non-volatile nonelectrolyte are dissolved in 3.00 mol of water (H₂O), what is the vapor pressure of the resulting solution? (The vapor pressure of pure water is 23.8 torr at 25.0 °C)

If 0.340 mol of a non-volatile nonelectrolyte are dissolved in 3.00 mol of water (H₂O), what is the vapor pressure of the resulting solution? (The vapor pressure of pure water is 23.8 torr at 25.0 °C)

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 12.88QE

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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

"F0rmat:

Giv3n:

Requir3d:

Equati0n:

Soluti0n:

Answ3r:

1A. Vapor Pressure Lowering
How much a dissolved solute lowers the vapor pressure of a solvent depends on the solute
concentration and is expressed by Raoult's Law which states that the vapor pressure of a component in
a solution depends on its mole fraction times the vapor pressure exerted by the pure component:
Psolution = (Xsolvent) (Psolvent)
where:
Psol'n = vapor pressure of the solution caused by the solvent
Xsolv = mole fraction of solvent in the solution
Psolv = vapor pressure of pure solvent at the same temperature
Note: pressure must be expressed in Torr (1 torr = 1 mmHg)
SP. 4
If 0.340 mol of a non-volatile nonelectrolyte are dissolved in 3.00 mol of water (H₂O), what is the vapor pressure
of the resulting solution? (The vapor pressure of pure water is 23.8 torr at 25.0 °C)
SP. 5
A chemist prepared a 25% by weight of glucose (C6H12O22) solution in water at 29°C. Determine the vapor
pressure lowering of the solution. The vapor pressure of pure water at 29°C is 30 torr.
SP. 6
The vapor pressure of water above a solution of water and a nonvolatile solute at 25.0°C is 19.3 mmHg. What
is the mole fraction of the solute? (The vapor pressure of pure water is 23.8 torr at 25.0°C)

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