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An analytical chemist is titrating 150.0 mL of a 0.5800 M solution of nitrous acid HNO2...

An analytical chemist is titrating 150.0 mL of a 0.5800 M solution of nitrous acid HNO2 with a 0.2800 M solution of KOH. The pKa of nitrous acid is 3.35. Calculate the pH of the acid solution after the chemist has added 320.0 mL of the 0.2800 M KOH solution to it.

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