**Question 2: In liquid-liquid extractions, it is often difficult to distinguish between the aqueous and organic layers. Sometimes, the composition of the layer is not consistent with the density. What is a quick and easy test to indicate whether the layer is aqueous or organic?

**Question 2: In liquid-liquid extractions, it is often difficult to distinguish between the aqueous and organic layers. Sometimes, the composition of the layer is not consistent with the density. What is a quick and easy test to indicate whether the layer is aqueous or organic?

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter81: Extractions, Separations, And Drying Agents

Section: Chapter Questions

Problem 10P

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Concept explainers

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.

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