1. See the data table below for two volatile substances. Fo 750.0 mL of ethanol and 250,0 mL of toluene, calculate a. the moles of ethanol b. the moles of toluene c. the mole fraction of ethanol d. the mole fraction of toluene e. the vapor pressure of the solution at 25.0 °C Molar Mass Density (g/mole) (g/mL) 46.07 0.789 92.14 0.867 Item ethanol toluene 2. See the data table below for two volatile substances. For vapor pressure of 20.38 kPa, calculate: a. the mole fraction of toluene b. the moles of toluene the moles of benzene benzene toluene C. Item Formula C₂H5OH C6H5CH3 Formula С.Н. C.HSCH, Molar Mass (g/mole) 78.11 92.14 Den 0.87 0.86
1. See the data table below for two volatile substances. Fo 750.0 mL of ethanol and 250,0 mL of toluene, calculate a. the moles of ethanol b. the moles of toluene c. the mole fraction of ethanol d. the mole fraction of toluene e. the vapor pressure of the solution at 25.0 °C Molar Mass Density (g/mole) (g/mL) 46.07 0.789 92.14 0.867 Item ethanol toluene 2. See the data table below for two volatile substances. For vapor pressure of 20.38 kPa, calculate: a. the mole fraction of toluene b. the moles of toluene the moles of benzene benzene toluene C. Item Formula C₂H5OH C6H5CH3 Formula С.Н. C.HSCH, Molar Mass (g/mole) 78.11 92.14 Den 0.87 0.86
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 12.85QE
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Can u please help me with the following 2 questions, I am struggling.
Transcribed Image Text:1. See the data table below for two volatile substances. For an ideal solution containing
750.0 mL of ethanol and 250.0 mL of toluene, calculate the following:
the moles of ethanol
b.
the moles of toluene
c.
the mole fraction of ethanol
d. the mole fraction of toluene
e. the vapor pressure of the solution at 25.0°C
Molar Mass
(g/mole)
46.07
92.14
a.
Item
ethanol
toluene
benzene
toluene
Item
Formula
C₂H5OH
C6H5CH3
2. See the data table below for two volatile substances. For an ideal solution with a solution
vapor pressure of 20.38 kPa, calculate:
a. the mole fraction of toluene
b.
the moles of toluene
c.
the moles of benzene
Formula
C. Ho
CoHsCH,
Density
(g/mL)
0.789
0.867
Molar Mass
(g/mole)
78.11
92.14
Vapor Pressure
@ 25.0 °C (kPa)
7.869
3.749
Density (g/mL)
0.876
0.867
Vapor Pressure
@ 22.5°C
(mmHg)
84.608
25.066
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