A 309ml sodium hydroxide solution of unknown concentration, Ask an Expert

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A 30.9mL sodium hydroxide solution of unknown concentration is titrated against .0113 M terephthalic acid (a diprotic acid with a molar mass of 166.14 g/mol). The burret has an initial volume of 50mL and a volume of 11.4mL at the equivalence point. Compute the concentration of the sodium hydroxide solution.

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