3C. Below are the gas chromatography results of two separate distillations of the same 1:1 mixture of ethanol and 1-butanol. One sample was obtained from the first fraction of a simple distillation and one sample was obtained from the first fraction of a fractional distillation. Identify the peaks in the chromatographs. Discuss the conclusions you can make regarding simple distillation compared with fractional distillation. Which method was more successful? Intensity (PA) Intensity (PA) 600000 500000 400000 300000 200000 100000 0 -100000 600000 500000 400000 300000 200000 100000 0 -100000 0.5 1 0.5 1 1 2 Simple Distillation GC 1.5 1 2 2 Simple Distillation Peak Number Retention Time (min) Peak Area %) 2.198 3.389 1.5 2.5 Fractional Distillation GC Time (min) 2 2.5 3 Time (min) 3.5 3 69.489 30.511 3.5 Fractional Distillation Peak Number Retention Time (min) Peak Area %) 2.226 95.381 3.513 4.619 4 4 4.5 4.5

3C. Below are the gas chromatography results of two separate distillations of the same 1:1 mixture of ethanol and 1-butanol. One sample was obtained from the first fraction of a simple distillation and one sample was obtained from the first fraction of a fractional distillation. Identify the peaks in the chromatographs. Discuss the conclusions you can make regarding simple distillation compared with fractional distillation. Which method was more successful? Intensity (PA) Intensity (PA) 600000 500000 400000 300000 200000 100000 0 -100000 600000 500000 400000 300000 200000 100000 0 -100000 0.5 1 0.5 1 1 2 Simple Distillation GC 1.5 1 2 2 Simple Distillation Peak Number Retention Time (min) Peak Area %) 2.198 3.389 1.5 2.5 Fractional Distillation GC Time (min) 2 2.5 3 Time (min) 3.5 3 69.489 30.511 3.5 Fractional Distillation Peak Number Retention Time (min) Peak Area %) 2.226 95.381 3.513 4.619 4 4 4.5 4.5

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 9Q

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