STANDARD REDUCTION POTENTIALS IN AQUEOUS SOLUTION AT 25!C Half-reaction " F2 ( g) # 2 e Co 3+ Au #e 3+ # 3e " Cl2 (g ) # 2 e 2F $ Co 2# $ Au(s) $ 2 Cl " $ 2 H 2 O(l ) $ " " + O2 (g) # 4 H # 4 e " " E !(V) " $ 2 Br " 2 Hg2+ # 2 e " $ Hg2+ # 2 e " Hg22+ $ Hg(l ) Br2 (l ) # 2 e + " $ Ag(s) $ 2 Hg(l ) Fe3+ # e " $ Fe 2+ I 2 (s) # 2 e " $ 2 I" $ Cu(s) $ Cu(s) $ Cu+ $ Sn 2+ Ag # e Hg2 2+ # 2e " Cu+ # e " Cu 2+ # 2e Cu 2+ " #e " Sn 4+ # 2 e " + " $ + " H 2S(g ) $ # 2e " H2 (g) Pb 2+ $ Pb(s) Sn 2+ # 2e " $ Sn(s) " $ Ni(s) # 2e " $ Co(s) # 2e " $ Cd(s) $ Cr 2+ Fe 2+ # 2 e " $ Fe(s) " $ Cr(s) $ Zn(s) $ H 2 ( g ) + 2 OH " S(s) # 2 H # 2 e 2H # 2e Ni 2+ # 2e Co 2+ Cd 2+ Cr 3+ # e " Cr 3+ Zn # 3e 2+ # 2e " 2 H 2 O(l ) # 2 e Mn 2+ # 2 e " Al 3+ # 3e " Be 2+ # 2 e " Mg 2+ # 2e + Na # e Ca Sr 2+ 2+ Ba " # 2e # 2e 2+ " " " # 2e Rb+ # e " + " " " $ Mn(s) $ Al(s) $ Be(s) $ Mg(s) $ Na(s) $ Ca(s) $ Sr(s) $ Ba(s) $ Rb(s) $ K(s) + " $ Cs(s) + " $ Li(s) K #e Cs # e Li # e -3- 2.87 1.82 1.50 1.36 1.23 1.07 0.92 0.85 0.80 0.79 0.77 0.53 0.52 0.34 0.15 0.15 0.14 0.00 – 0.13 – 0.14 – 0.25 – 0.28 – 0.40 – 0.41 – 0.44 – 0.74 – 0.76 – 0.83 – 1.18 – 1.66 – 1.70 – 2.37 – 2.71 – 2.87 – 2.89 – 2.90 – 2.92 – 2.92 – 2.92 – 3.05 GO ON TO THE NEXT PAGE.