3) For a solution of propanol and water, the following information is found: Xpropanol PH20 /kPa Ppropanol /kPa 3.168 0.00 0.020 3.13 0.67 0.050 3.09 1.44 0.100 3.03 1.76 0.200 2.91 1.81 0.400 2.89 1.89 0.600 2.65 2.07 0.800 1.79 2.37 0.900 1.08 2.59 0.950 0.56 2.77 1.000 0.00 2.901 a) Using a computer graphing program (e.g excel or similar graphing program), plot the data for the vapor pressure of each component and the total vapor pressure, as a function of mole fraction of propanol: b) What can you tell about the nature of the propanol-water intermolecular forces compared to water-water and propanol-propanol? c) From this data, estimate the Henry's law constant of propanol in water. HINT: remember Henry's law assumes linear behavior at low mole fraction of solute
3) For a solution of propanol and water, the following information is found: Xpropanol PH20 /kPa Ppropanol /kPa 3.168 0.00 0.020 3.13 0.67 0.050 3.09 1.44 0.100 3.03 1.76 0.200 2.91 1.81 0.400 2.89 1.89 0.600 2.65 2.07 0.800 1.79 2.37 0.900 1.08 2.59 0.950 0.56 2.77 1.000 0.00 2.901 a) Using a computer graphing program (e.g excel or similar graphing program), plot the data for the vapor pressure of each component and the total vapor pressure, as a function of mole fraction of propanol: b) What can you tell about the nature of the propanol-water intermolecular forces compared to water-water and propanol-propanol? c) From this data, estimate the Henry's law constant of propanol in water. HINT: remember Henry's law assumes linear behavior at low mole fraction of solute
Chapter1: Solubility
Section: Chapter Questions
Problem 1Q
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Transcribed Image Text:3) For a solution of propanol and water, the following information is found:
Xpropanol
PH20 /kPa
Ppropanol /kPa
3.168
0.00
0.020
3.13
0.67
0.050
3.09
1.44
0.100
3.03
1.76
0.200
2.91
1.81
0.400
2.89
1.89
0.600
2.65
2.07
0.800
1.79
2.37
0.900
1.08
2.59
0.950
0.56
2.77
1.000
0.00
2.901
a) Using a computer graphing program (e.g excel or similar graphing program), plot the
data for the vapor pressure of each component and the total vapor pressure, as a function
of mole fraction of propanol:
b) What can you tell about the nature of the propanol-water intermolecular forces compared
to water-water and propanol-propanol?
c) From this data, estimate the Henry's law constant of propanol in water.
HINT: remember Henry's law assumes linear behavior at low mole fraction of solute
d) Calculate the activity coefficients of water and propanol at 0.20, 0.40, 0.60 and 0.80 mol
fraction of propanol, considering water to be the solvent
(turn in your graphs with your homework)
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