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The K a of benzoic acid is 6.30 10 -5 . The pH of a buffer prepared by combining 50.0 mL of potassium benzoate

The K_a of benzoic acid is 6.30 × 10^-5. The pH of a buffer prepared by combining 50.0 mL of potassium benzoate and 50.0 mL of 1.00 M benzoic acid is?

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