Question: A polyprotic acid with the generic formula H 2 A has the following K a values: K a1 (H 2 A) = 2.074 x 10

A polyprotic acid with the generic formula H2A has the following Ka values:

Ka1 (H2A) = 2.074 x 10-3

Ka2 (HA-) = 3.566 x 10-10

What is the pH of a 7.106 M aqueous solution of the acid H2A?

Enter your answer with at least 3 sig figs.

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