When a $17\mathrm{.}5mL$ sample of a $0\mathrm{.}452M$ aqueous hydrofluoric acid solution is titrated with a $0\mathrm{.}321M$ aqueous potassium hydroxide solution, what is the $pH$ after $37\mathrm{.}0mL$ of potassium hydroxide have been added?

$pH=$

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What is the $pH$ at the equivalence point in the titration of a $22\mathrm{.}6mL$ sample of a $0\mathrm{.}480M$ aqueous hypochlorous acid solution with a $0\mathrm{.}434M$ aqueous barium hydroxide solution?

$pH=$

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