Based on the six given solvents, which of the following answers lists ALL of the solvents that ARE suitable for liquid-liquid extraction of an aqueous layer? 1. Acetonitrile 2. Dichloromethane 3. Methanol 4. Hexanes 5. Methyl tert-Butyl Ether 6. Isopropanol

Q: I. III. 0 NNCH 3 MeOH OCH3 OH OCH3 II. IV. COH MeOH

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Q: f. + O: FO

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Q: b. +

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Q: What volume, in ml, of 0.5000M HCN can be made from 16.28ml of 14.37M HCN?

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Q: mL

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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.