Media reacción Eo (V)

Media reacción Eo (V)

Li+(aq) + e− → Li(s) −3.05

Rb+(aq) + e− → Rb(s) −2.98

K+(aq) + e− → K(s) −2.93

Cs+(aq) + e− → Cs(s) −2.92

Ba2+(aq) + 2e− → Ba(s) −2.91

Sr2+(aq) + 2e− → Sr(s) −2.89

Ca2+(aq) + 2e− → Ca(s) −2.76

Na+(aq) + e− → Na(s) −2.71

Mg2+(aq) + 2e− → Mg(s) −2.38

H2 + 2e− → 2H− −2.25

Be2+(aq) + 2e− → Be(s) −1.85

Al3+(aq) + 3e− → Al(s) −1.68

Ti2+(aq) + 2e− → Ti(s) −1.63

TiO(s) + 2H+ + 2e− → Ti(s) + H2O −1.31

Ti2O3(s) + 2H+ + 2e− → 2TiO(s) + H2O −1.23

Ti3+(aq) + 3e− → Ti(s) −1.21

Mn2+(aq) + 2e− → Mn(s) −1.18

V2+(aq) + 2e− → V(s) −1.13

Sn(s) + 4H+ + 4e− → SnH4(g) −1.07

SiO2(s) + 4H+ + 4e− → Si(s) + 2H2O −0.91

B(OH)3(aq) + 3H+ + 3e− → B(s) + 3H2O −0.89

TiO2+(aq) + 2H+ + 4e− → Ti(s) + H2O −0.86

2 H2O(l) + 2e– → H2(g) + 2 OH–(aq) −0.83

Zn2+(aq) + 2e− → Zn(s) −0.76

Cr3+(aq) + 3e− → Cr(s) −0.74

Au(CN)2–(aq) + e– → Au(s) +2 CN–(aq) −0.60

2TiO2(s) + 2H+ + 2e− → Ti2O3(s) + H2O −0.56

Ga3+(aq) + 3e− → Ga(s) −0.53

H3PO2(aq) + H+ + e− → P(s) + 2H2O −0.51

H3PO3(aq) + 3H+ + 3e− → P(s) + 3H2O −0.50

H3PO3(aq) + 2H+ + 2e− → H3PO2(aq) + H2O −0.50

Fe2+(aq) + 2e− → Fe(s) −0.44

2CO2(g) + 2H+(aq) + 2e– → HOOCCOOH(aq) −0.43

Cr3+(aq) + e− → Cr2+(aq) −0.42

2H+ + 2e− → H2 −0.41

Cd2+(aq) + 2e− → Cd(s) −0.40

PbSO4(s) + 2e– → Pb(s) +SO42-(aq) −0.36

GeO2(s) + 2H+ + 2e− → GeO(s) + H2O −0.37

In3+(aq) + 3e− → In(s) −0.34

Tl+(aq) + e− → Tl(s) −0.34

Ge(s) + 4H+ + 4e− → GeH4(g) −0.29

Co2+(aq) + 2e → Co(s) −0.28

H3PO4(aq) + 2H+ + 2e− → H3PO3(aq) + H2O −0.28

V3+(aq) + e− → V2+(aq) −0.26

Ni2+(aq) + 2e− → Ni(s) −0.25

As(s) + 3H+ + 3e− → AsH3(g) −0.23

MoO2(s) + 4H+ + 4e− → Mo(s) + 2H2O −0.15

Si(s) + 4H+ + 4e− → SiH4(g) −0.14

Sn2+(aq) + 2e− → Sn(s) −0.13

O2(g) + H+ + e− → HO2•(aq) −0.13

Pb2+(aq) + 2e− → Pb(s) −0.13

WO2(s) + 4H+ + 4e− → W(s) −0.12

CO2(g) + 2H+ + 2e− → HCOOH(aq) −0.11

Se(s) + 2H+ + 2e− → H2Se(g) −0.11

CO2(g) + 2H+ + 2e− → CO(g) + H2O −0.11

SnO(s) + 2H+ + 2e− → Sn(s) + H2O −0.10

SnO2(s) + 2H+ + 2e− → SnO(s) + H2O −0.09

WO3(aq) + 6H+ + 6e− → W(s) −0.09

P(s) + 3H+ + 3e− → PH3(g) −0.06

HCOOH(aq) + 2H+ + 2e− → HCHO(aq) + H2O −0.03

2H+(aq) + 2e− → H2(g) 0.00

H2MoO4(aq) + 6H+ + 6e− → Mo(s) + 4H2O +0.11

Ge4+(aq) + 4e− → Ge(s) +0.12

C(s) + 4H+ + 4e− → CH4(g) +0.13

HCHO(aq) + 2H+ + 2e− → CH3OH(aq) +0.13

S(s) + 2H+ + 2e− → H2S(g) +0.14

Sn4+(aq) + 2e− → Sn2+(aq) +0.15

Cu2+(aq) + e− → Cu+(aq) +0.16

HSO4−(aq) + 3H+ + 2e− → 2H2O(l) + SO2(aq) +0.16

SO42−(aq) + 4H+ + 2e− → 2H2O(l) + SO2(aq) +0.17

SbO+ + 2H+ + 3e− → Sb(s) + H2O +0.20

H3AsO3(aq) + 3H+ + 3e− → As(s) + 3H2O +0.24

GeO(s) + 2H+ + 2e− → Ge(s) + H2O +0.26

Bi3+(aq) + 3e− → Bi(s) +0.32

VO2+(aq) + 2H+ + e− → V3+(aq) +0.34

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