?The main component of acid rain (\(H_{2}SO_{4}\)) forms from the \(SO_{2}\) pollutant

Chapter 10, Problem 115

(choose chapter or problem)

The main component of acid rain (\(H_{2}SO_{4}\)) forms from the \(SO_{2}\) pollutant in the atmosphere via these steps:

\(SO_{2} + OH \cdot \rightarrow HSO_{3} \cdot \)

\(HSO_{3} \cdot + O_{2} \rightarrow SO_{3} + HOO \cdot \)

\(SO_{3} + H_{2}O \rightarrow H_{2}SO_{4}\)

Draw the Lewis structure for each of the species in these steps and use bond energies and Hess’s law to estimate \(ΔH_{rxn}\) for the overall process. (Use 265 kJ>mol for the S¬O single bond energy.)

Text Transcription:

SO_2+ OH  

HSO_3 + O_2  SO_3 + HOO

SO_3 + H_2O  H_2SO_4

ΔH_{rxn}