1. At 25.00 °C the vapor pressure of pure liquid water is 23.4 torr and the vapor pressure of pure liquid ethanol (C₂H5OH) is 59.3 torr. For a solution of 5.00 mol H₂00 mixed with 5.00×10-2 mol C₂H5OH) at 25.00°C in a closed container, calculate the mole fraction of C₂H5OH(g) in the vapor phase above the solution.

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...
icon
Related questions
Question
Help me solve this problem
AHfus H₂O(s) = 6.020 kJ/mol
AHvap H₂O = 40.70 kJ/mol
Normal boiling point water = 100.00°C
Normal freezing point water = 0.00°C
Diethyl ether
Ethanol
Water
"At 1 atm.
34.5
78.5
100.0
3.63
2.02
1.22
0.512
-63.5
-116.2
-117.3
0.0
4.70
1.79
1.99
1.86
1
1.
At 25.00 °C the vapor pressure of pure liquid water is 23.4 torr and the vapor
pressure of pure liquid ethanol (C₂H5OH) is 59.3 torr. For a solution of 5.00 mol H₂00
mixed with 5.00×10-2 mol C₂H5OH) at 25.00°C in a closed container, calculate the mole
fraction of C₂H5OH(g) in the vapor phase above the solution.
Transcribed Image Text:AHfus H₂O(s) = 6.020 kJ/mol AHvap H₂O = 40.70 kJ/mol Normal boiling point water = 100.00°C Normal freezing point water = 0.00°C Diethyl ether Ethanol Water "At 1 atm. 34.5 78.5 100.0 3.63 2.02 1.22 0.512 -63.5 -116.2 -117.3 0.0 4.70 1.79 1.99 1.86 1 1. At 25.00 °C the vapor pressure of pure liquid water is 23.4 torr and the vapor pressure of pure liquid ethanol (C₂H5OH) is 59.3 torr. For a solution of 5.00 mol H₂00 mixed with 5.00×10-2 mol C₂H5OH) at 25.00°C in a closed container, calculate the mole fraction of C₂H5OH(g) in the vapor phase above the solution.
Expert Solution
Step 1

Given that, at 25°C temperature 

The vapour pressure of pure water is pw0 = 23.4 torr.

The vapour pressure of pure liquid ethanol is pe0 = 59.3 torr.

In the solution, the number of moles of water is nw = 5.00 mol.

And, the number of moles of ethanol is ne = 0.05 mol.

We have to calculate the mole fraction of C2H5OH(g) in the vapour phase above the solution.

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Solutions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY