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Author Question: The first-order decomposition of cyclopropane has a rate constant of 6.7 10-4 s-1. If the initial ... (Read 137 times)

geodog55

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on: Nov 18, 2019

Question 1

The half-life for the decay of radium is 1620 years. What is the rate constant for this first-order process?
◦ 2.33 × 10-4 yr-1
◦ 1.12 × 10-4 yr-1
◦ 6.17 × 10-4 yr-1
◦ 8.91 × 10-4 yr-1
◦ 4.28 × 10-4 yr-1

Question 2

The first-order decomposition of cyclopropane has a rate constant of 6.7 × 10-4 s-1. If the initial concentration of cyclopropane is 1.33 mol L-1, what is the concentration of cyclopropane after 644 s?
◦ 0.86 mol L-1
◦ 0.15 mol L-1
◦ 0.43 mol L-1
◦ 0.67 mol L-1
◦ 0.94 mol L-1
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Marked as best answer by geodog55 on Nov 18, 2019

eliasc0401

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Reply #1 on: Nov 18, 2019
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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geodog55

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Reply 2 on: Nov 18, 2019
Thanks for the timely response, appreciate it

alexanderhamilton

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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