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Calculate the pH of a buffer solution pr...

Calculate the pH of a buffer solution prepared by dissolving 30 g of `Na_2CO_3` in 500 mL of an aqueous solution containing 150 mL of 1 M HCI. `K_(a) (H_(2)CO_(3))=4.2 xx 10^(-7), K_(a) (HCO_(3)^(-))=4.8 xx 10^(-11)`.

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Calculate the pH of a buffer solution prepared by dissolving 30g of Na_(2)CO_(3) in 500 mL of an aqueous solution contaning 150 mL of 1 M HCI. (K_(a) for HCO_(3)^(-)= 5.63xx10^(-11))

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The pH of the a solution containing 0.4 M HCO_(3)^(-) is : [K_(a_(1)) (H_(2)CO_(3)) = 4 xx 10^(-7), K_(a_(2)) (HCO_(3)^(-)) = 4 xx 10^(-11)]

The pH of a solution containing 0.4 M HCO_(3)^(-) and 0.2 M CO_(3)^(2-) is : [K_(a1)(H_(2)CO_(3))=4xx10^(-7) , K_(a2)(HCO_(3)^(-))=4xx10^(-11)]

The pH of a solution prepared by mixing 2.0 mL of HCI solution of pH 3.0 and 3.0 mL of NaOH of pH 10.0 is

Calculate the pH after 50.0mL of this solution is treated with 25.0mL of 0.1M HCI K_(b) for NH_(3) = 1.77 xx 10^(-5) (pK_(b) ~~ 4.76) .

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