Question 1 Select ALL the statements that are TRUE. The activity of a component in an ideal solution equals its concentration. In a binary solution, if the vapour pressure over the solution is greater than the vapour pressure of pure A and greater than the vapour pressure of pure B, then the activity coefficient will be greater than one. If the activity coefficient for solvent is close to one then then we can assume that the activity coefficient for solute molecules will also be close to one. The activity of a volatile component in solution can be found by dividing its partial vapour pressure by its pure state vapour pressure, even if the solution is not ideal

Question 1 Select ALL the statements that are TRUE. The activity of a component in an ideal solution equals its concentration. In a binary solution, if the vapour pressure over the solution is greater than the vapour pressure of pure A and greater than the vapour pressure of pure B, then the activity coefficient will be greater than one. If the activity coefficient for solvent is close to one then then we can assume that the activity coefficient for solute molecules will also be close to one. The activity of a volatile component in solution can be found by dividing its partial vapour pressure by its pure state vapour pressure, even if the solution is not ideal

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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8.992 g of a non-volatile solute is dissolved in 240.0 g of water.The solute does not react with water nor dissociate in solution.Assume that the resulting solution displays ideal Raoult's law behaviour.At 30°C the vapour pressure of the solution is 31.540 torr.The vapour pressure of pure water at 30°C is 31.824 torr.Calculate the molar mass of the solute (g/mol).Submit Answer Incorrect. Tries 1/99 Previous TriesNow suppose, instead, that 8.992 g of a volatile solute is dissolved in 240.0 g of water.This solute also does not react with water nor dissociate in solution.The pure solute displays, at 30°C, a vapour pressure of 3.182 torr.Again, assume an ideal solution.If, at 30°C the vapour pressure of this solution is also 31.540 torr.Calculate the molar mass of this volatile solute.
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