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A 40.00 mL sample of 0.1000 M diprotic malonic acid is titrated with 0.0900 M KOH....

A 40.00 mL sample of 0.1000 M diprotic malonic acid is titrated with 0.0900 M KOH. What volume KOH must be added to give a pH of 6.00 ? Ka1 = 1.42 × 10−3 and Ka2 = 2.01 × 10−6.

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