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1) When a 18.9 mL sample of a 0.401 M aqueous hypochlorous acid solution is titrated with a 0.426 M aqueous sodium hydro...

1) When a 18.9 mL sample of a 0.401 M aqueous hypochlorous acid solution is titrated with a 0.426 M aqueous sodium hydroxide solution, what is the pH after 26.7 mL of sodium hydroxide have been added?

2) A buffer solution contains 0.381 M NaHSO3 and 0.281 M K2SO3. Determine the pH change when 0.083 mol HCl is added to 1.00 L of the buffer.

pH change =

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Answer #1

molas H C 18.9O.40 mmols 705789 m mok 1 mo les Na OH = 267 xo«426 m moles 374 2 m moles nenaining af fer neutisatin moles d m

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