Question- Assuming its concentration in air is 2.0 ppb, calculate the molar solubility of SO2 in raindrops whose pH is fixed (by the presence of strong acids) to be 4.0, 5.0, and 6.0.
Answers given in the book are: 7.8E-9 M; 6.0E-8 M; 5.8E-7 M
If possible just a brief explanation how you got the answer?