Question

A student separated two unknown compounds using Fractional Distillation followed by Gas Chromatography. The GC column had a non-polar liquid stationary phase and Helium was the mobile phase. Using the following data, determine the identity, boiling point and percent composition for each of the compounds in the GC sample. Explain reasoning. Your left peak has a percent composition of 20.49% and the right has 79.6%.

Hexane boiling pint is 69.2
Heptane boiling boing is 98.5
Methanol is 65.1
Octane 126
Ethanol 78.9
Water 100

mL distillate	Temperature of distilation head
0	45.8
1	59.8
2	69
3	69.1
4	69.1
5	69.3
6	69.4
7	75.9
8	77.9
9	78.3
10	78.4
11	78.8
12	78.8
13	78.8

Answer 1