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Author Question: If we start with 1.000 g of cobalt-60, 0.675 g will remain after 3.00 y. This means that the of is ________ y. (Read 55 times)

asan beg

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on: Jul 8, 2021

Question 1

If the decay constant for 131I is 9.98 × 10-7 s-1, calculate the activity of a 1.00 mg sample.
◦ 4.59 × 1012 atoms/s
◦ 4.73 × 1012 atoms/s
◦ 4.61 × 1024 atoms/s
◦ 9.98 × 10-4 atoms/s

Question 2

If we start with 1.000 g of cobalt-60, 0.675 g will remain after 3.00 y. This means that the of is ________ y.
◦ 3.08
◦ 4.44
◦ 2.03
◦ 5.29
◦ 7.65
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by asan beg on Jul 8, 2021

carolinefletcherr

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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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asan beg

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Reply 2 on: Jul 8, 2021
:D TYSM

samiel-sayed

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Reply 3 on: Yesterday
Wow, this really help

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