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The `pH` of `0.1 M` solution of cyanic acid `(HCNO)` is `2.34`. Calculate the ionization constant of the acid its degree of ionisation in the solution. |
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Answer» `pH=2.34` `-log [H_(3)O^(o+)]=2.34` or `[H_(3)O^(o+)]= Antilog [-2.34]=4.57xx10^(-3)` For weak acid `[H^(o+)]=Calpha=4.57xx10^(-3)` `C=0.1` `:. alpha=(4.57xx10^(-3))/0.1=0.0457` `K_(a)=Calpha^(2)=0.1xx(0.0457)^(2)=2.09xx10^(-4)` |
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