O GASES, LIQUIDS, AND SOLIDS Calculating ideal solution composition after a distillation A solution of methylene chloride (CH,Cl,) and ethanol (CH CH,OH is boiling at 70.8 °C. A sample of the vapor above the solution is cooled until it condenses. This condensed sample is analyzed, and turns out to be 50.% methylene chloride by mass. Calculate the percent by mass of methylene chloride in the boiling solution. Here's some data you may need: vapor pressure at 70.8 °C normal density boiling point 40. C menylene chloride 2009. torr 1.3 mL ethanol 78. °C 568. torr 0.79 mL Be sure your answer has 2 significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal. x10 Check Explanation Pr 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use X II
O GASES, LIQUIDS, AND SOLIDS Calculating ideal solution composition after a distillation A solution of methylene chloride (CH,Cl,) and ethanol (CH CH,OH is boiling at 70.8 °C. A sample of the vapor above the solution is cooled until it condenses. This condensed sample is analyzed, and turns out to be 50.% methylene chloride by mass. Calculate the percent by mass of methylene chloride in the boiling solution. Here's some data you may need: vapor pressure at 70.8 °C normal density boiling point 40. C menylene chloride 2009. torr 1.3 mL ethanol 78. °C 568. torr 0.79 mL Be sure your answer has 2 significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal. x10 Check Explanation Pr 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use X II
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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Calculate the percent by mass of methylene chloride in the boiling solution use some data you may need be sure to answer into significant digits.
Transcribed Image Text:O GASES, LIQUIDS, AND SOLIDS
Calculating ideal solution composition after a distillation
A solution of methylene chloride (CH,Cl,) and ethanol (CH CH,OH is boiling at 70.8 °C. A sample of the vapor above the solution is cooled until it
condenses. This condensed sample is analyzed, and turns out to be 50.% methylene chloride by mass.
Calculate the percent by mass of methylene chloride in the boiling solution. Here's some data you may need:
vapor pressure
at 70.8 °C
normal
density
boiling point
40. C
menylene chloride
2009. torr
1.3
mL
ethanol
78. °C
568. torr
0.79
mL
Be sure your answer has 2 significant digits.
Note for advanced students: you may assume the solution and vapor above it are ideal.
x10
Check
Explanation
Pr
2019 McGraw-Hill Education. All Rights Reserved. Terms of Use
X
II
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