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An analytical chemist is titrating 135.1 mL of a 0.9000 M solution of benzoic acid (C₆H₅CO₂H) with a 1.100 M solution of KOH. The pKa of benzoic acid is 4.20. Calculate the pH of the acid solution after the chemist has added 50.72 mL of the KOH solution to it.
Sagot :
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