0.12 Standard electrode (half-cell) potentials

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Standard Electrode (Half-Cell) Potentials
Half-Reaction	E ° (V)
${Ag}^{+} + e^{-} ⟶ Ag$	+0.7996
$AgCl + e^{-} ⟶ Ag + {Cl}^{-}$	+0.22233
${[Ag {(CN)}_{2}]}^{-} + e^{-} ⟶ Ag + 2 {CN}^{-}$	−0.31
${Ag}_{2} {CrO}_{4} + 2 e^{-} ⟶ 2 Ag + {CrO}_{4}^{2−}$	+0.45
${[Ag {({NH}_{3})}_{2}]}^{+} + e^{-} ⟶ Ag + 2 {NH}_{3}$	+0.373
${[Ag {(S_{2} O_{3})}_{2}]}^{3+} + e^{-} ⟶ Ag + {2S}_{2} O_{3}^{2−}$	+0.017
${[{AlF}_{6}]}^{3−} + 3 e^{-} ⟶ Al + 6 F^{-}$	−2.07
${Al}^{3+} + 3 e^{-} ⟶ Al$	−1.662
${Am}^{3+} + 3 e^{-} ⟶ Am$	−2.048
${Au}^{3+} + 3 e^{-} ⟶ Au$	+1.498
${Au}^{+} + e^{-} ⟶ Au$	+1.692
${Ba}^{2+} + 2 e^{-} ⟶ Ba$	−2.912
${Be}^{2+} + 2 e^{-} ⟶ Be$	−1.847
${Br}_{2} (a q) + 2 e^{-} ⟶ 2 {Br}^{-}$	+1.0873
${Ca}^{2+} + 2 e^{-} ⟶ Ca$	−2.868
${Ce}^{3} + 3 e^{-} ⟶ Ce$	−2.483
${Ce}^{4+} + e^{-} ⟶ {Ce}^{3+}$	+1.61
${Cd}^{2+} + 2 e^{-} ⟶ Cd$	−0.4030
${[Cd {(CN)}_{4}]}^{2−} + 2 e^{-} ⟶ Cd + 4 {CN}^{-}$	−1.09
${[Cd {({NH}_{3})}_{4}]}^{2+} + 2 e^{-} ⟶ Cd + 4 {NH}_{3}$	−0.61
$CdS + 2 e^{-} ⟶ Cd + S^{2−}$	−1.17
${Cl}_{2} + 2 e^{-} ⟶ 2 {Cl}^{-}$	+1.35827
${ClO}_{4}^{-} + H_{2} O + 2 e^{-} ⟶ {ClO}_{3}^{-} + 2 {OH}^{-}$	+0.36
${ClO}_{3}^{-} + H_{2} O + 2 e^{-} ⟶ {ClO}_{2}^{-} + 2 {OH}^{-}$	+0.33
${ClO}_{2}^{-} + H_{2} O + 2 e^{-} ⟶ {ClO}^{-} + 2 {OH}^{-}$	+0.66
${ClO}^{-} + H_{2} O + 2 e^{-} ⟶ {Cl}^{-} + 2 {OH}^{-}$	+0.89
${ClO}_{4}^{-} + 2 H_{3} O^{+} + 2 e^{-} ⟶ {ClO}_{3}^{-} + 3 H_{2} O$	+1.189
${ClO}_{3}^{-} + 3 H_{3} O^{+} + 2 e^{-} ⟶ {HClO}_{2} + 4 H_{2} O$	+1.21
$HClO + H_{3} O^{+} + 2 e^{-} ⟶ {Cl}^{-} + 2 H_{2} O$	+1.482
$HClO + H_{3} O^{+} + e^{-} ⟶ \frac{1}{2} {Cl}_{2} + 2 H_{2} O$	+1.611
${HClO}_{2} + 2 H_{3} O^{+} + 2 e^{-} ⟶ HClO + 3 H_{2} O$	+1.628
${Co}^{3+} + e^{-} ⟶ {Co}^{2+} (2 mol // H_{2} {SO}_{4})$	+1.83
${Co}^{2+} + 2 e^{-} ⟶ Co$	−0.28
${[Co {({NH}_{3})}_{6}]}^{3+} + e^{-} ⟶ {[Co {({NH}_{3})}_{6}]}^{2+}$	+0.1
$Co {(OH)}_{3} + e^{-} ⟶ Co {(OH)}_{2} + {OH}^{-}$	+0.17
${Cr}^{3} + 3 e^{-} ⟶ Cr$	−0.744
${Cr}^{3+} + e^{-} ⟶ {Cr}^{2+}$	−0.407
${Cr}^{2+} + 2 e^{-} ⟶ Cr$	−0.913
${[Cu {(CN)}_{2}]}^{-} + e^{-} ⟶ Cu + 2 {CN}^{-}$	−0.43
${CrO}_{4}^{2−} + 4 H_{2} O + 3 e^{-} ⟶ Cr {(OH)}_{3} + 5 {OH}^{-}$	−0.13
${Cr}_{2} O_{7}^{2−} + 14 H_{3} O^{+} + 6 e^{-} ⟶ 2 {Cr}^{3+} + 21 H_{2} O$	+1.232
${[Cr {(OH)}_{4}]}^{-} + 3 e^{-} ⟶ Cr + 4 {OH}^{-}$	−1.2
$Cr {(OH)}_{3} + 3 e^{-} ⟶ Cr + 3 {OH}^{-}$	−1.48
${Cu}^{2+} + e^{-} ⟶ {Cu}^{+}$	+0.153
${Cu}^{2+} + 2 e^{-} ⟶ Cu$	+0.34
${Cu}^{+} + e^{-} ⟶ Cu$	+0.521
$F_{2} + 2 e^{-} ⟶ 2 F^{-}$	+2.866
${Fe}^{2+} + 2 e^{-} ⟶ Fe$	−0.447
${Fe}^{3+} + e^{-} ⟶ {Fe}^{2+}$	+0.771
${[Fe {(CN)}_{6}]}^{3−} + e^{-} ⟶ {[Fe {(CN)}_{6}]}^{4−}$	+0.36
$Fe {(OH)}_{2} + 2 e^{-} ⟶ Fe + 2 {OH}^{-}$	−0.88
$FeS + 2 e^{-} ⟶ Fe + S^{2−}$	−1.01
${Ga}^{3+} + 3 e^{-} ⟶ Ga$	−0.549
${Gd}^{3+} + 3 e^{-} ⟶ Gd$	−2.279
$\frac{1}{2} H_{2} + e^{-} ⟶ H^{-}$	−2.23
$2 H_{2} O + 2 e^{-} ⟶ H_{2} + 2 {OH}^{-}$	−0.8277
$H_{2} O_{2} + 2 H_{3} O^{+} + 2 e^{-} ⟶ 4 H_{2} O$	+1.776
$2 H_{3} O^{+} + 2 e^{-} ⟶ H_{2} + 2 H_{2} O$	0.00
${HO}_{2}^{-} + H_{2} O + 2 e^{-} ⟶ 3 {OH}^{-}$	+0.878
${Hf}^{4+} + 4 e^{-} ⟶ Hf$	−1.55
${Hg}^{2+} + 2 e^{-} ⟶ Hg$	+0.851
$2 {Hg}^{2+} + 2 e^{-} ⟶ {Hg}_{2}^{2+}$	+0.92
${Hg}_{2}^{2+} + 2 e^{-} ⟶ 2 Hg$	+0.7973
${[{HgBr}_{4}]}^{2−} + 2 e^{-} ⟶ Hg + 4 {Br}^{-}$	+0.21
${Hg}_{2} {Cl}_{2} + 2 e^{-} ⟶ 2 Hg + 2 {Cl}^{-}$	+0.26808
${[Hg {(CN)}_{4}]}^{2−} + {2e}^{-} ⟶ Hg + {4CN}^{-}$	−0.37
${[{HgI}_{4}]}^{2−} + {2e}^{-} ⟶ Hg + {4I}^{-}$	−0.04
$HgS + {2e}^{-} ⟶ Hg + S^{2−}$	−0.70
$I_{2} + {2e}^{-} ⟶ {2I}^{-}$	+0.5355
${In}^{3+} + {3e}^{-} ⟶ In$	−0.3382
$K^{+} + e^{-} ⟶ K$	−2.931
${La}^{3+} + {3e}^{-} ⟶ La$	−2.52
${Li}^{+} + e^{-} ⟶ Li$	−3.04
${Lu}^{3+} + {3e}^{-} ⟶ Lu$	−2.28
${Mg}^{2+} + {2e}^{-} ⟶ Mg$	−2.372
${Mn}^{2+} + {2e}^{-} ⟶ Mn$	−1.185
${MnO}_{2} + {2H}_{2} O + {2e}^{-} ⟶ Mn {(OH)}_{2} + {2OH}^{-}$	−0.05
${MnO}_{4}^{-} + {2H}_{2} O + {3e}^{-} ⟶ {MnO}_{2} + {4OH}^{-}$	+0.558
${MnO}_{2} + 4 H^{+} + 2 e^{-} ⟶ {Mn}^{2+} + 2 H_{2} O$	+1.23
${MnO}_{4}^{-} + 8 H^{+} + 5 e^{-} ⟶ {Mn}^{2+} + 4 H_{2} O$	+1.507
${Na}^{+} + e^{-} ⟶ Na$	−2.71
${Nd}^{3+} + {3e}^{-} ⟶ Nd$	−2.323
${Ni}^{2+} + {2e}^{-} ⟶ Ni$	−0.257
${[Ni {({NH}_{3})}_{6}]}^{2+} + {2e}^{-} ⟶ Ni + {6NH}_{3}$	−0.49
${NiO}_{2} + 4 H^{+} + 2 e^{-} ⟶ {Ni}^{2+} + 2 H_{2} O$	+1.593
${NiO}_{2} + {2H}_{2} O + {2e}^{-} ⟶ Ni {(OH)}_{2} + {2OH}^{-}$	+0.49
$NiS + {2e}^{-} ⟶ Ni + S^{2−}$	+0.76
${NO}_{3}^{-} + 4 H^{+} + 3 e^{-} ⟶ NO + 2 H_{2} O$	+0.957
${NO}_{3}^{-} + 3 H^{+} + 2 e^{-} ⟶ {HNO}_{2} + H_{2} O$	+0.92
${NO}_{3}^{-} + H_{2} O + {2e}^{-} ⟶ {NO}_{2}^{-} + {2OH}^{-}$	+0.10
${Np}^{3+} + {3e}^{-} ⟶ Np$	−1.856
$O_{2} + {2H}_{2} O + {4e}^{-} ⟶ {4OH}^{-}$	+0.401
$O_{2} + 2 H^{+} + 2 e^{-} ⟶ H_{2} O_{2}$	+0.695
$O_{2} + 4 H^{+} + 4 e^{-} ⟶ 2 H_{2} O$	+1.229
${Pb}^{2+} + {2e}^{-} ⟶ Pb$	−0.1262
${PbO}_{2} + {SO}_{4}^{2−} + 4 H^{+} + 2 e^{-} ⟶ {PbSO}_{4} + 2 H_{2} O$	+1.69
$PbS + {2e}^{-} ⟶ Pb + S^{2−}$	−0.95
${PbSO}_{4} + {2e}^{-} ⟶ Pb + {SO}_{4}^{2−}$	−0.3505
${Pd}^{2+} + {2e}^{-} ⟶ Pd$	+0.987
${[{PdCl}_{4}]}^{2−} + {2e}^{-} ⟶ Pd + {4Cl}^{-}$	+0.591
${Pt}^{2+} + {2e}^{-} ⟶ Pt$	+1.20
${[{PtBr}_{4}]}^{2−} + {2e}^{-} ⟶ Pt + {4Br}^{-}$	+0.58
${[{PtCl}_{4}]}^{2−} + {2e}^{-} ⟶ Pt + {4Cl}^{-}$	+0.755
${[{PtCl}_{6}]}^{2−} + {2e}^{-} ⟶ {[{PtCl}_{4}]}^{2−} + {2Cl}^{-}$	+0.68
${Pu}^{3} + {3e}^{-} ⟶ Pu$	−2.03
${Ra}^{2+} + {2e}^{-} ⟶ Ra$	−2.92
${Rb}^{+} + e^{-} ⟶ Rb$	−2.98
${[{RhCl}_{6}]}^{3−} + {3e}^{-} ⟶ Rh + {6Cl}^{-}$	+0.44
$S + {2e}^{-} ⟶ S^{2−}$	−0.47627
$S + 2 H^{+} + 2 e^{-} ⟶ H_{2} S$	+0.142
${Sc}^{3+} + {3e}^{-} ⟶ Sc$	−2.09
$Se + 2 H^{+} + 2 e^{-} ⟶ H_{2} Se$	−0.399
${[{SiF}_{6}]}^{2−} + {4e}^{-} ⟶ Si + {6F}^{-}$	−1.2
${SiO}_{3}^{2−} + {3H}_{2} O + {4e}^{-} ⟶ Si + {6OH}^{-}$	−1.697
${SiO}_{2} + 4 H^{+} + 4 e^{-} ⟶ Si + 2 H_{2} O$	−0.86
${Sm}^{3+} + {3e}^{-} ⟶ Sm$	−2.304
${Sn}^{4+} + {2e}^{-} ⟶ {Sn}^{2+}$	+0.151
${Sn}^{2+} + {2e}^{-} ⟶ Sn$	−0.1375
${[{SnF}_{6}]}^{2−} + {4e}^{-} ⟶ Sn + {6F}^{-}$	−0.25
$SnS + {2e}^{-} ⟶ Sn + S^{2−}$	−0.94
${Sr}^{2+} + {2e}^{-} ⟶ Sr$	−2.89
${TeO}_{2} + 4 H^{+} + 4 e^{-} ⟶ Te + 2 H_{2} O$	+0.593
${Th}^{4+} + {4e}^{-} ⟶ Th$	−1.90
${Ti}^{2+} + {2e}^{-} ⟶ Ti$	−1.630
$U^{3+} + {3e}^{-} ⟶ U$	−1.79
$V^{2+} + {2e}^{-} ⟶ V$	−1.19
$Y^{3+} + {3e}^{-} ⟶ Y$	−2.37
${Zn}^{2+} + {2e}^{-} ⟶ Zn$	−0.7618
${[Zn {(CN)}_{4}]}^{2−} + {2e}^{-} ⟶ Zn + {4CN}^{-}$	−1.26
${[Zn {({NH}_{3})}_{4}]}^{2+} + {2e}^{-} ⟶ Zn + {4NH}_{3}$	−1.04
$Zn {(OH)}_{2} + {2e}^{-} ⟶ Zn + {2OH}^{-}$	−1.245
${[Zn {(OH)}_{4}]}^{2} + {2e}^{-} ⟶ Zn + {4OH}^{-}$	−1.199
$ZnS + {2e}^{-} ⟶ Zn + S^{2−}$	−1.40
${Zr}^{4} + {4e}^{-} ⟶ Zr$	−1.539

Questions & Answers

Why is b in the answer

Dahsolar Reply

how do you work it out?

Brad Reply

answer

Ernest

heheheehe

Nitin

(Pcos∅+qsin∅)/(pcos∅-psin∅)

John Reply

how to do that?

Rosemary Reply

what is it about?

Amoah

how to answer the activity

Chabelita Reply

how to solve the activity

Chabelita

solve for X,,4^X-6(2^)-16=0

Alieu Reply

x4xminus 2

Lominate

sobhan Singh jina uniwarcity tignomatry ka long answers tile questions

harish Reply

t he silly nut company makes two mixtures of nuts: mixture a and mixture b. a pound of mixture a contains 12 oz of peanuts, 3 oz of almonds and 1 oz of cashews and sells for $4. a pound of mixture b contains 12 oz of peanuts, 2 oz of almonds and 2 oz of cashews and sells for $5. the company has 1080

ZAHRO Reply

If  , , are the roots of the equation 3 2 0, x px qx r     Find the value of 1  .

Swetha Reply

Parts of a pole were painted red, blue and yellow. 3/5 of the pole was red and 7/8 was painted blue. What part was painted yellow?

Patrick Reply

Parts of the pole was painted red, blue and yellow. 3 /5 of the pole was red and 7 /8 was painted blue. What part was painted yellow?

Patrick

how I can simplify algebraic expressions

Katleho Reply

Lairene and Mae are joking that their combined ages equal Sam’s age. If Lairene is twice Mae’s age and Sam is 69 yrs old, what are Lairene’s and Mae’s ages?

Mary Reply

23yrs

Yeboah

lairenea's age is 23yrs

ACKA

Katleho

Ello everyone

Katleho

Laurene is 46 yrs and Mae is 23 is

Solomon

hey people

christopher

age does not matter

christopher

solve for X, 4^x-6(2*)-16=0

Alieu

prove`x^3-3x-2cosA=0 (-π<A<=π

Mayank Reply

create a lesson plan about this lesson

Rose Reply

Excusme but what are you wrot?

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Source: OpenStax, Chemistry. OpenStax CNX. May 20, 2015 Download for free at http://legacy.cnx.org/content/col11760/1.9

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