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1)What is the overall cell reaction of a galvanic cell employing the following half-reactions? NiO2(s) +...

1)What is the overall cell reaction of a galvanic cell employing the following half-reactions?
NiO2(s) + 2H2O + 2e- ⇄ Ni(OH)2(s) + 2OH-(aq), E°NiO2= 0.49 V;
Fe(OH)2(s) + 2e- ⇄ Fe(s) + 2OH-(aq), E°Fe(OH)2= − 0.88 V.

A)NiO2(s) + 2Fe(s) + 2H2O → Ni(OH)2(s) + 2Fe(OH)2(s)

B)NiO2(s) + Fe(s) + 2H2O → Ni(OH)2(aq) + Fe(OH)2(aq)

C)NiO2(s) + Fe(s) + 2H2O → Ni(OH)2(s) + Fe(OH)2(s)

D)Ni(OH)2(s) + Fe(OH)2(s) → NiO2(s) + Fe(s) + 2H2O

2)What is the standard cell potential of a galvanic cell?

E°cell =

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Answer #1

ivm ei e* Here h at amod* iz Correct ヒChoda eanod. -0.88 = 0.49 1 37 V

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