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A) When a 25.1 mL sample of a 0.434 M aqueous acetic acid solution is titrated...

A) When a 25.1 mL sample of a 0.434 M aqueous acetic acid solution is titrated with a 0.320 M aqueous sodium hydroxide solution, what is the pH after 51.1 mL of sodium hydroxide have been added?
pH =

B) When a 17.5 mL sample of a 0.492 M aqueous nitrous acid solution is titrated with a 0.451 M aqueous potassium hydroxide solution, what is the pH at the midpoint in the titration?
pH =

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