The average concentration of `SO_(2)` in the atmosphere over a city on a cetrain day is 10 ppm
Channel: Doubtnut
Date: 2020-08-02

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.