The pH of clean rain was calculated to be 5.68 in Example 4.16. Acid rain, defined here as rain with PH less than 5.68, can be formed when sulfur dioxide (SO2) is discharged into the atmosphere. Assume that the atmosphere contains 20 ppb by volume of SO2 (10-7.) atm). Develop an equation that will allow determination of the PH of rainwater in equilibrium with CO, in air @ 10-3.5 atm (see Example 4.16) and SO/. Use a spreadsheet to calculate this pH. Comment on the relative impacts of SO2 and CO2 on the pH of rain. The following should be used. H2SO3(aq) = $O (8) + H2O KH,SO3 0.80 atm-L/mol H2SO3 = HSO3 + H+ 1.77 HSO3 = 30 + H* PXA2 = 7.21 p mt The pH of clean rain was calculated to be 5.68 in Example 4.16. Acid rain, defined here as rain with PH less than 5.68, can be formed when sulfur dioxide (SO2) is discharged into the atmosphere. Assume that the atmosphere contains 20 ppb by volume of SO2 (10-7.) atm). Develop an equation that will allow determination of the PH of rainwater in equilibrium with CO, in air @ 10-3.5 atm (see Example 4.16) and SO/. Use a spreadsheet to calculate this pH. Comment on the relative impacts of SO2 and CO2 on the pH of rain. The following should be used. H2SO3(aq) = $O (8) + H2O KH,SO3 0.80 atm-L/mol H2SO3 = HSO3 + H+ 1.77 HSO3 = 30 + H* PXA2 = 7.21 p mt