Question

The standard electrode potentials of two half
reactions at 25°C are
Pb2+ + 2e- → Pb E°=-0.13V
Ag+ +e → Ag
E° =0.80 V
The possible cell reaction is
(1) Pb2+ + 2Ag + 2Ag* + Pb
(2) Pb+ 2Ag→ Pb2+ + 2Ag +
(3) Pb+ 2Ag* → Pb2+ + 2Ag
(4) Pb+ 2Ag → Pb2+ + 2Ag +

Answer 1

Explanation:

The possible cell reaction is

(1) Pb2+ + 2Ag + 2Ag* + Pb

(2) Pb+ 2Ag→ Pb2+ + 2Ag +

(3) Pb+ 2Ag* → Pb2+ + 2Ag

(4) Pb+ 2Ag → Pb2+ + 2Ag +

Answer 2

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The possible cell reaction is

The possible cell reaction is(1) Pb2+ + 2Ag + 2Ag* + Pb

The possible cell reaction is(1) Pb2+ + 2Ag + 2Ag* + Pb(2) Pb+ 2Ag→ Pb2+ + 2Ag +

The possible cell reaction is(1) Pb2+ + 2Ag + 2Ag* + Pb(2) Pb+ 2Ag→ Pb2+ + 2Ag +(3) Pb+ 2Ag* → Pb2+ + 2Ag

The possible cell reaction is(1) Pb2+ + 2Ag + 2Ag* + Pb(2) Pb+ 2Ag→ Pb2+ + 2Ag +(3) Pb+ 2Ag* → Pb2+ + 2Ag(4) Pb+ 2Ag → Pb2+ + 2Ag +

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