Question

Post-lab questions: 1. Given the temperature vs. composition diagram for a mixture of acetone and ethyl acetate below. Temperature (°C) 80 75 70 Vapor line 65 Liquid line 60 55 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Mole Fraction Acetone For a mixture of 40 mol % acetone and 60 mol % ethyl acetate: a. At which temperature will the mixture begin to boil? b. When the mixture begins to boil, what is the mol % acetone in the vapor? c. What is the boiling point of the liquid formed by condensation of the vapor from b above? d. How many theoretical plates (distillation stages) will be necessary to isolate acetone of at least 90% purity? 2. At a given temperature, liquid A has a higher vapor pressure than liquid B. Which liquid has the higher boiling point?

          Post-lab questions:
1. Given the temperature vs. composition diagram for a mixture of acetone and
ethyl acetate below.
Temperature (°C)
80
75
70
Vapor line
65
Liquid line
60
55
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Mole Fraction Acetone
For a mixture of 40 mol % acetone and 60 mol % ethyl acetate:
a. At which temperature will the mixture begin to boil?
b. When the mixture begins to boil, what is the mol % acetone in the vapor?
c. What is the boiling point of the liquid formed by condensation of the vapor
from b above?
d. How many theoretical plates (distillation stages) will be necessary to
isolate acetone of at least 90% purity?
2. At a given temperature, liquid A has a higher vapor pressure than liquid B. Which
liquid has the higher boiling point?

Post-lab questions:
1. Given the temperature vs. composition diagram for a mixture of acetone and
ethyl acetate below.
Temperature (°C)
80
75
70
Vapor line
65
Liquid line
60
55
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Mole Fraction Acetone
For a mixture of 40 mol % acetone and 60 mol % ethyl acetate:
a. At which temperature will the mixture begin to boil?
b. When the mixture begins to boil, what is the mol % acetone in the vapor?
c. What is the boiling point of the liquid formed by condensation of the vapor
from b above?
d. How many theoretical plates (distillation stages) will be necessary to
isolate acetone of at least 90% purity?
2. At a given temperature, liquid A has a higher vapor pressure than liquid B. Which
liquid has the higher boiling point?

Added by F-Tima R.

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