Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4°C. The vapor pressure of water at 69.4°C is 227.7 mm Hg. Compare the result with the data in the given table. Table 18.1 Boiling points and compositions of steam distillatesBoiling Pointof Pure Substance (°C)Boiling Pointof Mixture (°C)Соmposition(% Water)MixtureBenzene-water80.169.48.9%Toluene-water110.685.020.2%Hexane-water69.061.65.6%Heptane-water98.479.212.9%Octane-water125.789.625.5%Nonane-water150.895.039.8%1-Octanol-water195.099.490.0%

Distillation is the process involving the conversion of liquid into vapour and subsequently…

Answered: Table 18.1 Boiling points and…

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter5: Distillation

Section: Chapter Questions

Problem 5Q

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Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4°C. The vapor pressure of water at 69.4°C is 227.7 mm Hg. Compare the result with the data in the given table.

Table 18.1 Boiling points and compositions of steam distillates
Boiling Point
of Pure Substance (°C)
Boiling Point
of Mixture (°C)
Соmposition
(% Water)
Mixture
Benzene-water
80.1
69.4
8.9%
Toluene-water
110.6
85.0
20.2%
Hexane-water
69.0
61.6
5.6%
Heptane-water
98.4
79.2
12.9%
Octane-water
125.7
89.6
25.5%
Nonane-water
150.8
95.0
39.8%
1-Octanol-water
195.0
99.4
90.0%

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