What would be the equilibrium ph value of rainwater if, Ask an Expert

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What would be the equilibrium pH value of rainwater if atmospheric SO2 gas were its only dissolved constituent? Assume that the fugacity (activity) of SO2 gas in the atmosphere is 5 x 10-9 bar

SO2(g) + H2O(l) = H2SO3(aq) K1=2.0
H2SO3(aq) = HSO3(aq) + H+ K2=2.0 x 10-2

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Category:- Chemistry
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