Cell Notation at Standard state conditions?

Question

For the following balanced equation: 2 Ag+ (aq) + Cu(s) Cu2+ (aq) + 2 Ag(s)

Which letter corresponds to the correct cell notation at standard state conditions?


A. Ag+(aq) Cu2+(aq) Cu(s) Ag(s)
B. Cu(s) Cu2+(aq) Ag+(aq) Ag(s)
C. 2Ag+(aq) Cu2+(aq) 2Ag(s) Cu(s)
D. Cu2+(aq) Cu(s) Ag(s) Ag+(aq)
E. Cu(s) Cu2+(aq) 2Ag+(aq) 2Ag(s)

What reaction is occurring at the anode?


A. Ag+ + e– Ag
B. Cu2+ + 2e– Cu
C. Cu Cu2+ + 2e–
D. Ag Ag+ + e–

Answer 1

D and A.

Answer 2

Cu(s) / Cu2+ (aq) // Ag+ (aq) / Ag(s)

Ag+ + 1e- >> Ag E° = 0.800 V

Cu2+ + 2e- >> Cu E° = 0.337 V

for the half-reaction

Cu >> Cu2+ + 2e- E° = - 0.337 V

total reaction that will occur

2 Ag + Cu >> 2Ag + + Cu2+ E cell = 0.800- 0.337 = 0.463 V

Answer 3

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