Answer to Question #180913 in General Chemistry for Chaihcai

General Chemistry

Question #180913

Buffer solutions:

1. Calculate the pH of a carbonate buffer system that contains 0.0065 M HCO3 and 0.0084 M CO32-. The Ka of HCO3- is 4.7 X 10-11.

Expert's answer

"pH = -log10([H^{+} ]) = -log10(3.6369*10-11) = 10.44"

"pH=10.44"

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