c. PCl, i. Draw a valid Lewis structure with one central atom. ii. What is the electron geometry of this molecule? iii. What is the molecular geometry of this molecule? iv. What are the bond angles? v. Is this molecule polar? If yes, draw dipoles on each polar bond and net dipole.

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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.