(Solution) An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500. mL sample of air at 700. torr and 38C, she adds 19.25... > Snapessays.com


(Solution) An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500. mL sample of air at 700. torr and 38C, she adds 19.25...


11. An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500. mL sample of air at 700. torr and 38°C, she adds 19.25 mL of 0.01017 M aqueous iodine, which reacts as follows:

 

2SO2(g) + I2(aq) + 2H2O(l) ? 2HSO41–(aq) + 2I1–(aq) + 4H+(aq)

 

The excess I2(aq) left over from the above reaction was titrated with 11.37 mL of 0.0105 M thiosulfate (S2O32–) as follows: I2(aq) + 2S2O32–(aq) ? 2I1–(aq) + S4O62–(aq)

 

What is the volume % of SO2 in the original air sample?

 


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This question was answered on: Sep 21, 2023

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