Ionic Equilibrium

\({K_{{a_1}}}\), \({K_{{a_2}}}\) and \({K_{{a_3}}}\) are the respective ionization constants for the following reactions (a), (b) and (c).

(a) \({H_2}{C_2}{O_4} \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over {\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} {H^ + } + H{C_2}O_4^ -\)

(b) \(H{C_2}O_4^ - \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over {\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} {H^ + } + {C_2}O_4^{2 - }\)

(c) \({H_2}{C_2}O_4^{} \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over {\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} 2{H^ + } + {C_2}O_4^{2 - }\)

The relationship between \({K_{{a_1}}}\), \({K_{{a_2}}}\) and \({K_{{a_3}}}\) is given as :