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Author Question: What mass of chromium could be deposited by electrolysis of an aqueous solution of Cr2(SO4)3 for 165 ... (Read 85 times)

renzo156

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on: Mar 21, 2021

Question 1

What is ΔG° for the following electrochemical equation? (E°red(K+/K) = –2.931 V, E°red(Ca2+/Ca) = –2.868 V)
2K(s) + Ca2+(aq) → 2K+(aq) + Ca(s)

◦ 12 kJ/mol
◦ –6 kJ/mol
◦ –12 kJ/mol
◦ –24 kJ/mol
◦ 24 kJ/mol

Question 2

What mass of chromium could be deposited by electrolysis of an aqueous solution of Cr2(SO4)3 for 165 minutes using a constant current of 12.0 amperes?

◦ 0.187 g
◦ 192.1 g
◦ 0.356 g
◦ 32.0 g
◦ 21.3 g
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by renzo156 on Mar 21, 2021

Yixagurpuldink

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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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renzo156

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Reply 2 on: Mar 21, 2021
Wow, this really help

frankwu0507

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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