CHM136H1 : Notes for Solubility lab

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31 Dec 2010
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CHM136H1 Full Course Notes
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CHM136H1 Full Course Notes
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And intermolecular forces: when the interaction of the solvent molecules with the molecules of a compound x are similar to, or stronger than, the intermolecular forces between molecules of x, then x will dissolve. Hydrogen bond formation strongest; h interacting with neighbouring molecules" o, n, f, cl. Insoluble: purely carbon-and-hydrogen compounds, interior heteroatom compounds so dipole moments cancel, organo-halides. Salt formation to overcome 5-carbon barrier with charged functional group: r-cooh [carboxylic acid] reacting with naoh [base] o. Ar-oh cannot react with nahco3 [base: r-nh2/r2nh/r3n [base] reacting with hcl [acid, recrystallization: purifying solids.

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