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Successive dissociation constants of `H_(2)CO_(3)` are `K_(a_(1)) = 10^(-3)` and `K_(a_(2)) = 10^(-6)`. An aqueous solution contains `0.1 MH_(2)CO_(3)` and `0.1 M HCI` at `25^(@)C` The concentration of `CO_(3)^(2-)` at equilibrium in solution is: (approximately)A. `10^(-6)M`B. `10^(-12)M`C. `10^(-10)M`D. `10^(-8)M`

Answer» Correct Answer - d


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