Acidic Solution | Eo (V) |
F2(g) + 2 e– | +2.87 |
Co3+(aq) + e– | +1.82 |
Pb4+(aq) + 2 e– | +1.8 |
H2O2(aq) + 2 H+(aq) + 2 e– | +1.77 |
NiO2(s) + 4 H+(aq) + 2 e– | +1.7 |
PbO2(s) + SO42–(aq) + 4 H+(aq) + 2 e– | +1.685 |
Au+(aq) + e– | +1.68 |
2 HClO(aq) + 2 H+(aq) + 2 e– | +1.63 |
Ce4+(aq) + e– | +1.61 |
NaBiO3(s) + 6 H+(aq) + 2 e– | +~1.6 |
MnO4–(aq) + 8 H+(aq) + 5 e– | +1.51 |
Au3+(aq) + 3 e– | +1.5 |
ClO3–(aq) + 6 H+(aq) + 5 e– | +1.47 |
BrO3– + 6 H+(aq) + 6 e– | +1.44 |
Cl2(g) + 2 e– | +1.358 |
Cr2O72– + 14 H+(aq) + 6 e– | +1.33 |
N2H5+(aq) + 3 H+(aq) + 2 e– | +1.24 |
MnO2(s) + 4 H+(aq) + 2 e– | +1.23 |
O2(g) + 4 H+(aq) + 4 e– | +1.229 |
Pt2+(aq) + 2 e– | +1.2 |
IO3–(aq) + 6 H+(aq) + 5 e– | +1.195 |
ClO4–(aq) + 2 H+(aq) + 2 e– | +1.19 |
Br2(l) + 2 e– | +1.066 |
AuCl4– + 3 e– | +1 |
Pd2+(aq) + 2 e– | +0.987 |
NO3–(aq) + 4 H+(aq) + 3 e– | +0.96 |
NO3–(aq) + 3 H+(aq) + 2 e– | +0.94 |
2 Hg2+(aq) + 2 e– | +0.92 |
Hg2+(aq) + 2 e– | +0.855 |
Ag+(aq) + e– | +0.7994 |
Hg22+(aq) + 2 e– | +0.789 |
Fe3+(aq) + e– | +0.771 |
SbCl6–(aq) + 2 e– | +0.75 |
[PtCl4]2–(aq) + 2 e– | +0.73 |
O2(g) + 2 H+(aq) + 2 e– | +0.682 |
[PtCl6]2–(aq) + 2 e– | +0.68 |
H3AsO4(aq) + 2 H+(aq) + 2 e– | +0.58 |
I2(s) + 2 e– | +0.535 |
TeO2(s) + 4 H+(aq) + 4 e– | +0.529 |
Cu+(aq) + e– | +0.521 |
[RhCl6]3–(aq) + 3 e– | +0.44 |
Cu2+(aq) + 2 e– | +0.337 |
HgCl2(s) + 2 e– | +0.27 |
AgCl(s) + e– | +0.222 |
SO42–(aq) + 4 H+(aq) + 2 e– | +0.2 |
SO42–(aq) + 4 H+(aq) + 2 e– | +0.17 |
Cu2+(aq) + e– | +0.153 |
Sn4+(aq) + 2 e– | +0.15 |
S(s) + 2 H+(aq) + 2 e– | +0.14 |
AgBr(s) + e– | +0.0713 |
2 H+(aq) + 2 e– | 0 |
N2O(g) + 6 H+(aq) + H2O + 4 e– | -0.05 |
Pb2+(aq) + 2 e– | -0.126 |
Sn2+(aq) + 2 e– | -0.14 |
AgI(s) + e– | -0.15 |
[SnF6]2–(aq) + 4 e– | -0.25 |
Ni2+(aq) + 2 e– | -0.25 |
Co2+(aq) + 2 e– | -0.28 |
Tl+(aq) + e– | -0.34 |
PbSO4(s) + 2 e– | -0.356 |
Se(s) + 2 H+(aq) + 2 e– | -0.4 |
Cd2+(aq) + 2 e– | -0.403 |
Cr3+(aq) + e– | -0.41 |
Fe2+(aq) + 2 e– | -0.44 |
2 CO2(g) + 2 H+(aq) + 2 e– | -0.49 |
Ga3+(aq) + 3 e– | -0.53 |
HgS(s) + 2 H+(aq) + 2 e– | -0.72 |
Cr3+(aq) + 3 e– | -0.74 |
Zn2+(aq) + 2 e– | -0.763 |
2H2O(l) + 2 e– | -0.8277 |
Cr2+(aq) + 2 e– | -0.91 |
Mn2+(aq) + 2 e– | -1.18 |
V2+(aq) + 2 e– | -1.18 |
Zr4+(aq) + 4 e– | -1.53 |
Al3+(aq) + 3 e– | -1.66 |
H2(g) + 2 e– | -2.25 |
Mg2+(aq) + 2 e– | -2.37 |
Na+(aq) + e– | -2.714 |
Ca2+(aq) + 2 e– | -2.87 |
Sr2+(aq) + 2 e– | -2.89 |
Ba2+(aq) + 2 e– | -2.9 |
Rb+(aq) + e– | -2.925 |
K+(aq) + e– | -2.925 |
Li+(aq) + e– | -3.045 |
Basic Solution |
|
ClO–(aq) + H2O + 2 e– | 0.89 |
OOH–(aq) + H2O + 2 e– | 0.88 |
2 NH2OH(aq) + 2 e– | 0.74 |
ClO3– (aq) + 3 H2O + 6 e– | 0.62 |
MnO4–(aq) + 2 H2O + 3 e– | 0.588 |
MnO4–(aq) + e– | 0.564 |
NiO2(s) + 2 H2O + 2 e- | 0.49 |
Ag2CrO4(s) + 2 e– | 0.446 |
O2(g) + 2 H2O + 4 e– | 0.4 |
ClO4–(aq) + H2O + 2e– | 0.36 |
Ag2O(s) + H2O + 2e– | 0.34 |
2 NO2–(aq) + 3 H2O + 4 e– | 0.15 |
N2H4(aq) + 2 H2O + 2 e– | 0.1 |
[Co(NH3)6]3+(aq) + e– | 0.1 |
HgO(s) + H2O + 2e– | 0.0984 |
O2(g) + H2O + 2 e– | 0.076 |
NO3–(aq) + H2O + 2 e– | 0.01 |
MnO2(s) + 2 H2O + 2 e– | -0.05 |
CrO42–(aq) + 4 H2O + 3 e– | -0.12 |
Cu(OH)2(s) + 2 e– | -0.36 |
Fe(OH)3(s) + e– | -0.56 |
2 H2O + 2 e– | -0.8277 |
2 NO3–(aq) + 2 H2O + 2 e– | -0.85 |
Fe(OH)2(s) + 2 e– | -0.877 |
SO42–(aq) + H2O + 2 e– | -0.93 |
N2(g) + 4 H2O + 4 e– | -1.15 |
[Zn(OH)4]2–(aq) + 2 e– | -1.22 |
Zn(OH)2(s) + 2 e– | -1.245 |
[Zn(CN)4]2–(aq) + 2 e– | -1.26 |
Cr(OH)3(s) + 3 e– | -1.3 |
SiO32–(aq) + 3 H2O + 4 e– | -1.7 |