Chart: Standard Reduction Potentials

**Standard Reduction Potentials at 25°C**
Half-Reaction	$E^0 (text{V})$
$text{F}_2 + 2e^- rightarrow 2text{F}^-$	+2.87
$text{PbO}_2 + 4text{H}^+ + text{SO}{_4}^{2-} + 2e^- rightarrow text{PbSO}_4 + 2text{H}_2text{O}$	+1.70
$text{MnO}_4{^-} + 8text{H}^+ + 5text{e}^- rightarrow text{Mn}^{2+} + 4text{H}_2text{O}$	+1.51
$text{Au}^{3+} + 3e^- rightarrow text{Au}$	+1.50
$text{Cl}_2 + 2e^- rightarrow 2text{Cl}^-$	+1.36
$text{Cr}_2text{O}_7{^{2-}} + 14text{H}^+ + 6e^- rightarrow 2text{Cr}^{3+} + 7text{H}_2text{O}$	+1.33
$text{O}_2 + 4text{H}^+ + 4e^- rightarrow 2text{H}_2text{O}$	+1.23
$text{Br}_2 + 2e^- rightarrow 2text{Br}^-$	+1.07
$text{NO}{_3}^- + 4text{H}^+ + 3e^- rightarrow text{NO} + 2text{H}_2text{O}$	+0.96
$2text{Hg}^{2+} + 2e^- rightarrow text{Hg}{_2}^{2+}$	+0.92
$text{Hg}^{2+} + 2e^- rightarrow text{Hg}$	+0.85
$text{Ag}^+ + e^- rightarrow text{Ag}$	+0.80
$text{Fe}^{3+} + e^- rightarrow text{Fe}^{2+}$	+0.77
$text{I}_2 + 2e^- rightarrow 2text{I}^-$	+0.53
$text{Cu}^+ + e^- rightarrow text{Cu}$	+0.52
$text{O}_2 + 2text{H}_2text{O} + 4e^- rightarrow 4text{OH}^-$	+0.40
$text{Cu}^{2+} + 2e^- rightarrow text{Cu}$	+0.34
$text{Sn}^{4+} + 2e^- rightarrow text{Sn}^{2+}$	+0.13
$2text{H}^+ + 2e^- rightarrow text{H}_2$	0.00
$text{Pb}^{2+} + 2e^- rightarrow text{Pb}$	-0.13
$text{Sn}^{2+} + 2e^- rightarrow text{Sn}$	-0.14
$text{Ni}^{2+} + 2e^- rightarrow text{Ni}$	-0.25
$text{Co}^{2+} + 2e^- rightarrow text{Co}$	-0.28
$text{PbSO}_4 + 2e^- rightarrow text{Pb} + text{SO}{_4}^{2-}$	-0.31
$text{Cd}^{2+} + 2e^- rightarrow text{Cd}$	-0.40
$text{Fe}^{2+} + 2e^- rightarrow text{Fe}$	-0.44
$text{Cr}^{3+} + 3e^- rightarrow text{Cr}$	-0.74
$text{Zn}^{2+} + 2e^- rightarrow text{Zn}$	-0.76
$2text{H}_2text{O} + 2e^- rightarrow text{H}_2 + 2text{OH}^-$	-0.83
$text{Mn}^{2+} + 2e^- rightarrow text{Mn}$	-1.18
$text{Al}^{3+} + 3e^- rightarrow text{Al}$	-1.66
$text{Be}^{2+} + 2e^- rightarrow text{Be}$	-1.70
$text{Mg}^{2+} + 2e^- rightarrow text{Mg}$	-2.37
$text{Na}^+ + e^- rightarrow text{Na}$	-2.71
$text{Ca}^{2+} + 2e^- rightarrow text{Ca}$	-2.87
$text{Sr}^{2+} + 2e^- rightarrow text{Sr}$	-2.89
$text{Ba}^{2+} + 2e^- rightarrow text{Ba}$	-2.90
$text{Rb}^+ + e^- rightarrow text{Rb}$	-2.92
$text{K}^+ + e^- rightarrow text{K}$	-2.92
$text{Cs}^+ + e^- rightarrow text{Cs}$	-2.92
$text{Li}^+ + e^- rightarrow text{Li}$	-3.05

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