Electrochemical Series Data

The following electrode potentials are for use in the questions in this topic. A printable version of this series can be found here. If the ligand in a complex is not given, you may assume that the complex contains water ligands.

EquationEo / V
Ag+ + e- –> Ag+0.80
Al3+ + 3e –> Al– 1.66
Ba2+ + 2e –> Ba– 2.90
Br2  + 2e- –> 2Br−+1.07
Ca2+ + e- –> Ca– 2.87
Cl2 + 2e –> 2Cl+1.36
2HOCl + 2H+ + 2e –> Cl2 + 2H2O+1.64
Co2+ + 2e –> Co– 0.28
Co3+ + e –> Co2++1.82
[Co(NH3)6]2+ + 2e –> Co + 6NH3– 0.43
Cr2+ + 2e –> Cr– 0.91
Cr3+ + e –> Cr2+– 0.41
Cr2O72- + 14H+ + 6e –> 2Cr3+ + 7H2O+1.33
Cu+ + e –> Cu+0.52
Cu2+ + 2e –> Cu+0.34
Cu2+ + e –> Cu++0.15
[Cu(NH3)4]2+ + 2e –> Cu + 4NH3– 0.05
F2 + 2e –> 2F+2.87
Fe2+ + 2e –> Fe– 0.44
Fe3+ + e –> Fe2++0.77
[Fe(CN)6]3- + e –> [Fe(CN)6]4-+0.36
Fe(OH)3 + e –> Fe(OH)2 + OH– 0.56
2H+ + 2e –> H2+0.00
I2 + 2e –> 2I+0.54
K+ + e –> K– 2.92
Li+ + e –> Li– 3.04
Mg2+ + 2e –> Mg– 2.38
Mn2+ + 2e –> Mn– 1.18
Mn3+ + e –> Mn2++1.49
MnO2 + 4H+ + 2e –> Mn2+ + 2H2O+1.23
MnO4 + e –> MnO42-+0.56
MnO4 + 4H+ + 3e –> MnO2 + 2H2O+1.67
MnO4 + 8H+ + 5e –> Mn2+ + 4H2O+1.52
NO3 + 2H+ + e –> NO2 + H2O+0.81
NO3 + 3H+ + 2e –> HNO2 + H2O+0.94
NO3 + 10H+ + 8e –> NH4+ + 3H2O+0.87
Na+ + e –> Na– 2.71
Ni2+ + 2e –> Ni– 0.25
[Ni(NH3)6]2+ + 2e –> Ni + 6NH3– 0.51
H2O2 + 2H+ –> 2H2O+1.77
O2 + 4H2 + 2e –> 2H2O+1.23
O2 + 2H2O + 4e –> 4OH+0.40
O2 + 2H+ + 2e –> H2O2+0.68
2H2O + 2e –> H2 + 2OH– 0.83
Pb2+ + 2e –> Pb– 0.13
Pb4+ + 2e –> Pb2++1.69
PbO2 + 4H+ + 2e –> Pb2+ + 2H2O+1.47
SO42- + 4H+ + 2e –> SO2 + 2H2O+0.17
S2O82- + 2e –> 2SO42-+2.01
S4O62- + 2e –> 2S2O32-+0.09
Sn2+ + 2e –> Sn– 0.14
Sn4+ + 2e –> Sn2++0.15
V2+ + 2e –> V– 1.20
V3+ + e –> V2+– 0.26
VO2+ + 2H+ + e –> V3+ + H2O+0.34
VO2+ + 2H+ + e –> VO2+ + H2O+1.00
VO3 + 4H+ + e –> VO2+ + 2H2O+1.00
Zn2+ + 2e –> Zn– 0.76