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Chemistry, 17.04.2020 01:28 kealinwiley

Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid ionizes in water: C6H5COOH⇌C6H5COO−+H+ The pKa of this reaction is 4.2. In a 0.68 M solution of benzoic acid, what percentage of the molecules are ionized?

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