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The smog constituent peroxyacetyl nitrate (PAN) dissociates into peroxyacetyl radicals and NO2(g) in a first order reaction with a half- life of 32 min. CH;COONO, (3) CH3COO • (g) + NO2(g) PAN Peroxyacetyl radical (a) What is the value of the rate constant? (b) If the initial concentration of PAN in an air sample is 2.7x1015 molecules/L, what will be the concentration 2.24 h later?

The smog constituent peroxyacetyl nitrate (PAN) dissociates into peroxyacetyl radicals and NO2(g) in a first order reaction with a half- life of 32 min. CH;COONO, (3) CH3COO • (g) + NO2(g) PAN Peroxyacetyl radical (a) What is the value of the rate constant? (b) If the initial concentration of PAN in an air sample is 2.7x1015 molecules/L, what will be the concentration 2.24 h later?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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The smog constituent peroxyacetyl nitrate (PAN) dissociates into peroxyacetyl radicals and NO2(g) in a first order reaction with a half- life of 32 min. CH3COONO, (3) CH3CO0 • (g) + NO(g) PAN Peroxyacetyl radical (a) What is the value of the rate constant? (b) If the initial concentration of PAN in an air sample is 2.7x1015 molecules/L, what will be the concentration 2.24 h later?
Transcribed Image Text:The smog constituent peroxyacetyl nitrate (PAN) dissociates into peroxyacetyl radicals and NO2(g) in a first order reaction with a half- life of 32 min. CH3COONO, (3) CH3CO0 • (g) + NO(g) PAN Peroxyacetyl radical (a) What is the value of the rate constant? (b) If the initial concentration of PAN in an air sample is 2.7x1015 molecules/L, what will be the concentration 2.24 h later?
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The smog constituent PAN dissociates into peroxyacetyl radicals and NO2 (g) in a first-order reaction.

We have to calculate the rate constant and the concentration of PAN after 2.24 h if the initial concentration of PAN is 2.7×1015 molecules/L.

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