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Problem 129 Medium Difficulty

The main component of acid rain (H2SO4) forms from SO2, a pollutant in the atmosphere, via these steps:

Draw the Lewis structure for each of the species in these steps and use bond energies and Hess's law to estimate Hrxn for the overall process. (Use 265 kJ/mol for the S-O single-bond energy.)

Answer

$$
=-174 k J
$$

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Video Transcript

we have the molecular representation off the reaction as shown, we need to deter mined The change in aunt elope from Energy's off born broken along with energy's off bone created, substituting in the values for the first reaction. Second reaction and third reaction we have changing and Talibans Negative. Seven kilo Jules Positive. 356 kilo jewels on negative. 500 negative. 523 collaterals. Adding these three equations. We get the combined final equation as sure from do it. The overall change in mentality off the process is given by adding the individual intel loopy changes, which is negative. 174 kilo Jules.

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