Figure 1 shows the boiling point-composition diagram of compound X and water 120 835 1 130 205 H 30 100 a) By refering to Figure 1, 20 10 line 40 50 % X by mass 60 Figure 1 Frie 126 90 100 Name line Y and line Z ii) If a solution containing 70% by mass of X is distilled, identify the boiling point and vapor composition (X and water) of this mixture

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Chapter10: Properties Of Solutions
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Figure 1 shows the boiling point-composition diagram of compound X and water
120
135
110
205
B
10
100
a) By refering to Figure 1,
20
10
line
40 50
% X by mass
Figure 1
50
Frid
BO 90 100
Name line Y and line Z
ii) If a solution containing 70% by mass of X is distilled, identify the boiling point and vapor
composition (X and water) of this mixture
ii) Name two processes that involved during fractional distillation
b) Explain how component of distillate and residue are obtained.
c) The vapor pressure at 50°C for pure methanol (CH-OH) and water are 406 torr and 92.5
torr respectively. Calculate the total pressure and the composition of the vapor in
equilibrium with a liquid mixture containing 60 g of water and 40 g of methanol at this
temperature.
Transcribed Image Text:Figure 1 shows the boiling point-composition diagram of compound X and water 120 135 110 205 B 10 100 a) By refering to Figure 1, 20 10 line 40 50 % X by mass Figure 1 50 Frid BO 90 100 Name line Y and line Z ii) If a solution containing 70% by mass of X is distilled, identify the boiling point and vapor composition (X and water) of this mixture ii) Name two processes that involved during fractional distillation b) Explain how component of distillate and residue are obtained. c) The vapor pressure at 50°C for pure methanol (CH-OH) and water are 406 torr and 92.5 torr respectively. Calculate the total pressure and the composition of the vapor in equilibrium with a liquid mixture containing 60 g of water and 40 g of methanol at this temperature.
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