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MCAT Organic Question — Aqueous Solubility

Which of the following changes would have the largest effect on the aqueous solubility of sodium 3, 3-dimethyl-4-phenyl pentanoate?   A) Lowering the pH of the solution below the pKa of the carboxylic acid. B) Replacing the phenyl substituent with a non-conjugated alkyl ring structure. C) Increasing the length of the parent carbon chain by