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Author Question: The Br-82 nucleus has a half-life of about 1.0 103 minutes. If you wanted 3.8 g of Br-82 and the ... (Read 277 times)

mcmcdaniel

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on: Mar 21, 2021

Question 1

Radioactivity is not useful for:

◦ Dating artifacts and rocks.
◦ Producing electricity.
◦ Tracing pathways in biological systems.
◦ Making chemicals like sulfuric acid.
◦ Radioactivity is useful for all of these processes.

Question 2

The Br-82 nucleus has a half-life of about 1.0 × 103 minutes. If you wanted 3.8 g of Br-82 and the delivery time was three days, about how much NaBr should you order (assuming all of the Br in the NaBr was Br-82)?

◦ 3.8 g
◦ 7.6 g
◦ 4.6 g
◦ 98 g
◦ 9.9 g
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by mcmcdaniel on Mar 21, 2021

maya.nigrin17@yahoo.com

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Reply #1 on: Mar 21, 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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mcmcdaniel

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Reply 2 on: Mar 21, 2021
Thanks for the timely response, appreciate it

ttt030911

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Reply 3 on: Yesterday
Gracias!

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