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Author Question: The first order reaction A products has t1/2 = 150 s. What percent of the sample remains unreacted ... (Read 73 times)

Pineappleeh

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on: Jul 8, 2021

Question 1

The elementary reaction

2 NO2(g) → 2 NO(g) + O2(g)

is second order in NO2 and the rate constant at 501 K is 7.93 × 10-3 L mol-1 s-1. The reaction half-life at this temperature when [NO2]0 = 0.45 mol L-1 is ________ s.
◦ 3.6 × 10-3
◦ 0.011
◦ 126
◦ 87
◦ 280

Question 2

The first order reaction A → products has t1/2 = 150 s. What percent of the sample remains unreacted after 300 s?
◦ 25%
◦ 50%
◦ 12.5%
◦ 0.0%
◦ 100%
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by Pineappleeh on Jul 8, 2021

wergv

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Reply #1 on: Jul 8, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Pineappleeh

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Reply 2 on: Jul 8, 2021
Great answer, keep it coming :)

bbburns21

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Reply 3 on: Yesterday
Excellent

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