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.
| Equation | Eo / 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 |