What is the ph of .0750l of hypochlorous acidhypochlorite, Ask an Expert

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What is the PH of .0750L of hypochlorous acid/hypochlorite buffer solution, originally .300M in HCLO and .400M in CLO-. after 7.5E-3 moles of NAOH have been added to the buffer.(assume no volume change) The answer is PH=7.92, but what is the solution to get to 7.92?

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