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Question #31123
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What is the expression for Ka1 of a diprotic acid H2A?
A. Ka1 = [H+][A2–]/[HA–]
B. Ka1 = [HA–]/[H2A]
C. Ka1 = [H+]^2/[H2A]
D. Ka1 = [H+][HA–]/[H2A]
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