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A solution of methylene chloride (CH,CI,) and ethanol (CH,CH,OH) is boiling at 62.7 °C. A sample of the vapor above the solution is cooled until it condenses. This condensed sample is analyzed, and turns out to be 75.% methylene chloride by mass. Calculate the percent by mass of methylene chloride in the boiling solution. Here's some data you may need: normal vapor pressure density boiling point at 62.7 °C 1.3 mL methylene chloride 40. °C 1588. torr ethanol 78. °C 0.79 mL 411. torr Be sure your answer has the correct number of significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal.

A solution of methylene chloride (CH,CI,) and ethanol (CH,CH,OH) is boiling at 62.7 °C. A sample of the vapor above the solution is cooled until it condenses. This condensed sample is analyzed, and turns out to be 75.% methylene chloride by mass. Calculate the percent by mass of methylene chloride in the boiling solution. Here's some data you may need: normal vapor pressure density boiling point at 62.7 °C 1.3 mL methylene chloride 40. °C 1588. torr ethanol 78. °C 0.79 mL 411. torr Be sure your answer has the correct number of significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Try Again Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations. A solution of methylene chloride (CH,CL,) and ethanol (CH,CH,OH) is boiling at 62.7 °C. A sample of the vapor above the solution is cooled until it condenses. This condensed sample is analyzed, and turns out to be 75.% methylene chloride by mass. Calculate the percent by mass of methylene chloride in the boiling solution. Here's some data you may need: normal boiling point vapor pressure density at 62.7 °C 1.3 mL methylene chloride 40. °C 1588. torr 78. °C 0.79 mL ethanol 411. torr Be sure your answer has the correct number of significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal. 47% x10 ?
Transcribed Image Text:Try Again Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations. A solution of methylene chloride (CH,CL,) and ethanol (CH,CH,OH) is boiling at 62.7 °C. A sample of the vapor above the solution is cooled until it condenses. This condensed sample is analyzed, and turns out to be 75.% methylene chloride by mass. Calculate the percent by mass of methylene chloride in the boiling solution. Here's some data you may need: normal boiling point vapor pressure density at 62.7 °C 1.3 mL methylene chloride 40. °C 1588. torr 78. °C 0.79 mL ethanol 411. torr Be sure your answer has the correct number of significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal. 47% x10 ?
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