1. What is the purpose of adding Na2SO4 to the dichloromethane layer prior to distillation 2. Explain why salt was added to the water before the liquid-liquid extraction of caffeine. What is going on, why is it occurring, and how is it happening? 3. Why was the liquid-liquid extraction of caffeine done three times instead of a single- step extraction? please explain in detail. thanks.

1. What is the purpose of adding Na2SO4 to the dichloromethane layer prior to distillation 2. Explain why salt was added to the water before the liquid-liquid extraction of caffeine. What is going on, why is it occurring, and how is it happening? 3. Why was the liquid-liquid extraction of caffeine done three times instead of a single- step extraction? please explain in detail. thanks.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter87: Steam Distillation

Section: Chapter Questions

Problem 3P

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