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Author Question: Consider the following standard reduction potentials in acid solution:Cr3+ + 3e CrE = 0.74 VCo2+ + ... (Read 42 times)

Scollins7

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on: Nov 5, 2023

Question 1

Consider the following standard reduction potentials in acid solution:
         
 
E°(V)
Al3+ + 3e–→ Al(s)
–1.66
Sn4+ + 2e–→ Sn2+
+0.14
I2(s) + 2e–→ 2I– (aq)
+0.53

Which is the weakest oxidizing agent in this list?

◦ Al3+(aq)
◦ Al(s)
◦ I–(aq)
◦ I2(s)
◦ Sn4+(aq)

Question 2

Consider the following standard reduction potentials in acid solution:
Cr3+ + 3e–→ Cr
E° = –0.74 V
Co2+ + 2e–→  Co
E° = –0.28 V
MnO4–  + 8H+ + 5e–→ Mn2+ + 4H2O
E° = +1.51 V

The weakest reducing agent listed above is

◦ Cr3+.
◦ Cr.
◦ Mn2+.
◦ Co.
◦ MnO4–.
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by Scollins7 on Nov 5, 2023

ALuthy

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Reply #1 on: Nov 5, 2023
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Scollins7

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Reply 2 on: Nov 5, 2023
Thanks for the timely response, appreciate it

Dominic

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Reply 3 on: Yesterday
Excellent

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