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When a 17.2 mL sample of a 0.324 M aqueous hypochlorous acid solution is titrated with a 0.319 M aqueous barium hydroxide solution, (1) What is the pH at the midpoint in the titration? (2) What is the pH at the equivalence point of the titration? (3) What is the pH after 13.1 mL of barium hydroxide have been added?

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Answer #1

A the mid point, PHPKA We Kwow, PKa Ho c = 753. PH-7.53 -3 5.573xlD 0.0172 LX0. 3 24 mole/ MOle n HO u : volume o foalon), m

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