State equilibrium ph value of rainwater if atmospheric

Reference no: EM13166068

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

Reference no: EM13166068

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