A solution of methylene chloride (CH₂Cl₂) and ethanol (CH₂CH₂OH) that is 50.% methylene chloride by mass is boiling at 60.3 °C. The vapor is collected and cooled until it condenses to form a new solution. Calculate the percent by mass of methylene chloride in the new solution. Here's some data you may need: methylene chloride ethanol 0% normal boiling point 40. °C 78. °C density X 1.3 mL 0.79 8 mL vapor pressure at 60.3 °C Be sure your answer has 2 significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal. S 1476. torr 372. torr
A solution of methylene chloride (CH₂Cl₂) and ethanol (CH₂CH₂OH) that is 50.% methylene chloride by mass is boiling at 60.3 °C. The vapor is collected and cooled until it condenses to form a new solution. Calculate the percent by mass of methylene chloride in the new solution. Here's some data you may need: methylene chloride ethanol 0% normal boiling point 40. °C 78. °C density X 1.3 mL 0.79 8 mL vapor pressure at 60.3 °C Be sure your answer has 2 significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal. S 1476. torr 372. torr
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 12.86QE
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Transcribed Image Text:A solution of methylene chloride (CH₂Cl₂) and ethanol (CH₂CH₂OH) that is 50.% methylene chloride by mass is boiling at 60.3 °C. The vapor is collected
and cooled until it condenses to form a new solution.
Calculate the percent by mass of methylene chloride in the new solution. Here's some data you may need:
methylene chloride
ethanol
0%
normal
boiling point
40. °C
78. °C
x10
density
X
1.3
0.79
g
mL
g
mL
vapor pressure
at 60.3 °C
Be sure your answer has 2 significant digits.
Note for advanced students: you may assume the solution and vapor above it are ideal.
1476. torr
372. torr
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