What is the pH of a 0.20 M solution of oxalic acid, H2C2O4? The Ka1,2 values of oxalic acid are 5.6 x 10^-2 and 5.4 x 10^-5, respectively.
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Step 1
Write the dissociation equations for oxalic acid: a) First dissociation: $H_2C_2O_4 \rightleftharpoons H^+ + HC_2O_4^-$ b) Second dissociation: $HC_2O_4^- \rightleftharpoons H^+ + C_2O_4^{2-}$ Show more…
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