Carbon dioxide dissolves in water to form carbonic acid, Ask an Expert

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Carbon dioxide dissolves in water to form carbonic acid which is primarily dissolved CO2. Dissolved CO2 satisfies the equilibrium equation

CO2(s)<->CO2(aq) K=.032

The acid dissociation constants listed in the majority standard reference texts for carbonic acid actually apply to dissolve CO2. For a CO2 partial pressure of 8.7×10-4 bar in the atmosphere, explain what is the pH of water in equilibrium with the atmosphere? For carbonic acid Ka1 = 4.46× 10-7 as well as Ka2 = 4.69× 10-11.

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Category:- Chemistry
Reference No.:- M91222751

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