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The average concentration of SO_(2) in the atmosphere over a city on a cetrain day is 10 ppm, when the average temperature is 298 K. Given that the solubility of SO_(2) in water at 298 K is 1.3653 mol litre^(-1) and the pK_(a) of H_(2)SO_(3) is 1.92, estimate the pH of rain on that day. |
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Answer» Solution :`[SO_3] = [H_2SO_3] = 1.3653 M , H_2SO_3 IFF H^(+) + HSO_3^(-) , K_a = 1.2 XX 10^(-2)` 0.913 |
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