Question
Asked Jan 17, 2019

Fractional distillation of the 50:50 mixture of two miscible liquids gave the following distillation curve. What are their boiling points?

120
110
100
90
2 80
70
60
50
40
ー-Temp (°C)
0
10
15
20
25
Vol of Distillate (mL)
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120 110 100 90 2 80 70 60 50 40 ー-Temp (°C) 0 10 15 20 25 Vol of Distillate (mL)

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Step 1

Fractional distillation is a method to separate two miscible liquids which have boiling point close to each other.  The difference in simple distillation and fractional distillation is of set up of the experiment. In fractional distillation we use an extra column which is set vertically over the boiling flask.

Step 2

Fractional distillation can be used to determine the boiling point of two miscible liquids. 

Step 3

If we plot a graph between volume of distillate collected versus temperature then wi...

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