A solution of methylene chloride (CH2Cl2) and ethanol (CH3CH2OH) that is 25.% methylene chloride by mass is boiling at 69.7°C. The vapor is collected and cooled until it condenses to form a new solution. only round for final anwer not during math please! Calculate the percent by mass of methylene chloride in the new solution. Here's some data you may need: normal boiling point density vapor pressure at 69.7°C methylene chloride 40.°C 1.3gmL 1949.torr ethanol 78.°C 0.79gmL 545.torr Be sure your answer has 2 significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal.
A solution of methylene chloride (CH2Cl2) and ethanol (CH3CH2OH) that is 25.% methylene chloride by mass is boiling at 69.7°C. The vapor is collected and cooled until it condenses to form a new solution. only round for final anwer not during math please! Calculate the percent by mass of methylene chloride in the new solution. Here's some data you may need: normal boiling point density vapor pressure at 69.7°C methylene chloride 40.°C 1.3gmL 1949.torr ethanol 78.°C 0.79gmL 545.torr Be sure your answer has 2 significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal.
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 12.99QE
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A solution of methylene chloride (CH2Cl2) and ethanol (CH3CH2OH) that is 25.% methylene chloride by mass is boiling at 69.7°C. The vapor is collected and cooled until it condenses to form a new solution.
only round for final anwer not during math please!
Calculate the percent by mass of methylene chloride in the new solution. Here's some data you may need:
| normal boiling point | density | vapor pressure at
69.7°C
|
|
| methylene chloride |
40.°C
|
1.3gmL
|
1949.torr
|
| ethanol |
78.°C
|
0.79gmL
|
545.torr
|
Be sure your answer has 2 significant digits.
Note for advanced students: you may assume the solution and vapor above it are ideal.
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