F2(g) + 2e– → 2F– (aq)
2.87
Co3+(aq) + e– → Co2+(aq)
1.92
Au+(aq) + e– → Au(s)
1.83
H2O2(aq) + 2H3O+(aq) + 2e– → 4H2O(ℓ
1.763
Ce4+(aq) + e– → Ce3+(aq)
1.72
Pb4+(aq) + 2e– → Pb2+(aq)
1.69
PbO2(s) + SO42−(aq) + 4H3O+(aq) + 2e– → PbSO4(s) + 6H2O(ℓ
1.690
NiO2(s) + 4H3O+(aq) + 2e– → Ni2+(aq) + 6H2O(ℓ
1.68
2HClO(aq) + 2H3O+(aq) + 2e– → Cl2(g) + 4H2O(ℓ
1.63
Au3+(aq) + 3e− → Au(s)
1.52
MnO4−(aq) + 8H3O+(aq) + 5e– → Mn2+(aq) + 12H2O(ℓ
1.51
BrO3−(aq) + 6H3O+(aq) + 5e− → ½Br2(aq) + 9H2O(ℓ
1.478
2ClO3−(aq) + 12H3O+(aq) + 10e– → Cl2(g) + 18H2O(ℓ
1.47
Cr2O72−(aq) + 14H3O+(aq) + 6e– → 2Cr3+(aq) + 21H2O(ℓ
1.36
Cl2(g) + 2e− → 2Cl−(aq)
1.358
N2H5+(aq) + 3H3O+(aq) + 2e– → 2NH4+(aq) + 3H2O(ℓ
1.275
MnO2(s) + 4H3O+(aq) + 2e– → Mn2+(aq) + 6H2O(ℓ
1.23
O2(g) + 4H3O+(aq) + 4e– → 6H2O(ℓ
1.229
ClO4−(aq) + 2H3O+(aq) + 2e– → ClO3−(aq) + 3H2O(ℓ
1.201
IO3−(aq) + 6H3O+(aq) + 5e– → ½ I2(aq) + 9H2O(ℓ
1.195
Pt2+(aq) + 2e− → Pt(s)
1.188
Br2(ℓ

+ 2e− → 2Br−(aq)
1.066
AuCl4−(aq) + 3e− → Au(s) + 4Cl−(aq)
1.00
NO3−(aq) + 4H3O+(aq) + 3e– → NO(g) + 6H2O(ℓ
0.96
NO3−(aq) + 3H3O+(aq) + 2e– → HNO2(aq) + 4H2O(ℓ
0.94
Pd2+(aq) + 2e− → Pd(s)
0.915
2Hg2+(aq) +2e− → Hg22+(aq)
0.9110
Hg2+(aq) +2e− → Hg(ℓ
0.8535
SbCl6−(aq) + 2e− → SbCl4−(aq) + 2Cl−(aq)
0.84
Ag+(aq) + e− → Ag(s)
0.7991
Hg22+(aq) + 2e− → 2Hg(ℓ
0.7960
Fe3+(aq) + e− → Fe2+(aq)
0.771
[PtCl4] 2−(aq) + 2e− → Pt(s) + 4Cl–(aq)
0.758
[PtCl6] 2−(aq) + 2e− → [PtCl4] 2−(aq) + 2Cl–(aq)
0.726
O2(g) + 2H3O+(aq) + 2e– → H2O2(aq) + 2H2O(ℓ
0.695
TeO2(s) + 4H3O+(aq) + 4e– → Te(s) + 6H2O(ℓ
0.604
H3AsO4(aq) + 2H3O+(aq) + 2e− → HAsO2(aq) + 4H2O(ℓ
0.560
I2(s) + 2e− → 2I−(aq)
0.535
Cu+(aq) + e− → Cu(s)
0.521
[RhCl6] 3−(aq) + 3e− → Rh(s) + 6Cl–(aq)
0.5
Cu2+(aq) + 2e− → Cu(s)
0.340
Hg2Cl2(s) + 2e− → 2Hg(ℓ

+ 2Cl−(aq)
0.27
AgCl(s) + e− → Ag(s) + Cl−(aq)
0.222
Cu2+(aq) + e− → Cu+(aq)
0.159
SO42−(aq) + 4H3O+(aq) + 2e– → H2SO3(aq) + 5H2O(ℓ
0.158
Sn4+(aq) + 2e− → Sn2+(aq)
0.15
S(s) + 2H3O+(aq) + 2e– → H2S(aq) + 2H2O(ℓ
0.144
AgBr(s) + e− → Ag(s) + Br−(aq)
0.0713
2H3O+(aq) + 2e– → 2H2(g) + 2H2O(ℓ

(reference electrode)
0.0000
N2O(g) + 6H3O+(aq) + 4e– → 2NH3OH+(aq) + 5H2O(ℓ
– 0.05
HgS(s, black) + 2H3O+(aq) + 2e– → Hg(ℓ

+ H2S(g) + 2H2O(ℓ
– 0.085
Se(s) + 2H3O+(aq) + 2e– → H2Se(aq) + 2H2O(ℓ
– 0.115
Pb2+(aq) + 2e− → Pb(s)
– 0.125
Sn2+(aq) + 2e− → Sn(s)
– 0.1375
AgI(s) + e− → Ag(s) + I−(aq)
– 0.1522
[SnF6]2–(aq) + 4e− → Sn(s) + 6F−(aq)
– 0.200
Ni2+(aq) + 2e− → Ni(s)
– 0.25
Co2+(aq) + 2e− → Co(s)
-0.277
Tl+(aq) + e− → Tl(s)
– 0.3363
PbSO4(s) + 2e− → Pb(s) + SO42−(aq)
– 0.3505
Cd2+(aq) + 2e− → Cd(s)
– 0.403
Cr3+(aq) + e− → Cr2+(aq)
– 0.424
Fe2+(aq) + 2e− → Fe(s)
– 0.44
2CO2(g) + 2H3O+(aq) + 2e– → (COOH)2(aq) + 2H2O(ℓ
– 0.481
Ga3+(aq) + 3e− → Ga(s)
– 0.53
Cr3+(aq) + 3e− → Cr(s)
– 0.74
Zn2+(aq) + 2e− → Zn(s)
– 0.763
Cr2+(aq) + 2e− → Cr(s)
– 0.90
V2+(aq) + 2e− → V(s)
– 1.13
Mn2+(aq) + 2e− → Mn(s)
– 1.18
Zr4+(aq) + 4e− → Zr(s)
– 1.55
Al3+(aq) + 3e− → Al(s)
– 1.676
H2(g) + 2e− → 2H−(aq)
– 2.25
Mg2+(aq) + 2e− → Mg(s)
– 2.356
Na+(aq) + e− → Na(s)
- 2.714
Ca2+(aq) + 2e− → Ca(s)
– 2.84
Sr2+(aq) + 2e− → Sr(s)
– 2.89
Ba2+(aq) + 2e− → Ba(s)
– 2.92
Rb+(aq) + e− → Rb(s)
– 2.925
K+(aq) + e− → K(s)
– 2.925
Li+(aq) + e− → Li(s) – 3.045