Page 44 - Chemistry - XII
P. 44
E = E° E° = +0.34V 0.76V =1.10V.
cell SRP SRP
cathoode anode
Zn = 0.01 M and C u =1.0 M
2+
2+
Zn
2+
0.0591
E =E° log
cell cell 2+
2 2 Cu
E =1.10 0.0591 log 0.1 M
cell
2 1 M
E =1.10 0.0591 log 10 =1.10 V +0.0295 V = 1.1295 V
-1
cell
2
Zn = 0.01 M and C u =1.0 M
2+
2+
Zn
2+
0.0591
E =E° log
cell cell 2+
2 2 Cu
E =1.10 0.0591 log 0.01 M =1..10 0.0591 log 10 2
cell
2 1 M 2
E =1.10 + 0.0591 = 1.1591 V.
cell
Zn = 0.001 M and C u =1.0 M
2+
2+
E =1.01 0.0591 l log 0.001 M = 1.10 0.0591 log 10 3
cell
2 1 M 2
0.17733
E =1.10+
cell
2
E = 1.10 + 0.0886 = 1.1886 V
cell
Zn =1 M and C u = 0.1 M
2+
2+
E =1.01 0.0591 logg 1 M = 1.10 0.0591 log 10
cell
2 0.1 M 2
E =1.10 0.0295
cell
E = 1.0705 V
c cell
Zn =1 M and C u = 0.01 M
2+
2+
E =1.10 0.0591 loog 1 M
cell
2 0.1 M
=1.10 0.0591 = 1.0409 V
