Inaqueous solution, the ionization constants for carbonic acid are K_(1)=4.2xx10^(-7) and K_(2)=4.8xx10^(-11). Select the correct statement for asaturated 0.034 M solution of the carbonic acid.

Inaqueous solution, the ionization constants for carbonic acid are K_

1.	Inaqueous solution, the ionization constants for carbonic acid are K_(1)=4.2xx10^(-7) and K_(2)=4.8xx10^(-11). Select the correct statement for asaturated 0.034 M solution of the carbonic acid.
Answer» The concentrations of `H^(+)` and `HCO_(3)^(-)` are APPROXIMATELY equal. The concentration of `H^(+)` is double that of `CO_(3)^(-)`. The concentration of `CO_(3)^(2-)` is 0.034 M. The concentration of `CO_(3)^(2-) ` isgreater than that of `HCO_(3)^(-)`. Solution :`H_(2)CO_(3)hArr H^(+)HCO_(3)^(-), K_(1)=4.2xx10^(-7)` `HCO_(3)^(+)hArrH^(+)+CO_(3)^(2-),K_(2)=4.8xx10^(-11)` As `K_(2)lt lt K`, concentrations of `H^(+)` and `HCO_(3)^(-)` will be approximately equal.