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Author Question: Naturally occurring copper exists in two isotopic forms: 63Cu and 65Cu. The atomic mass of copper is ... (Read 81 times)

chads108

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on: Mar 21, 2021

Question 1

Iron is produced from its ore by the reactions:
   
How many moles of O2(g) are needed to produce 1.5 moles of Fe(s)?

◦ 0.8 mole O2

◦ 1.1 mole O2

◦ 1.5 mole O2

◦ 2.3 mole O2

◦ 4.5 mole O2


Question 2

Naturally occurring copper exists in two isotopic forms: 63Cu and 65Cu. The atomic mass of copper is 63.55 amu. What is the approximate natural abundance of 63Cu?

◦ 63%
◦ 90%
◦ 70%
◦ 50%
◦ 30%
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by chads108 on Mar 21, 2021

joneynes

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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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chads108

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

bblaney

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Reply 3 on: Yesterday
Wow, this really help

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