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17_Voltammetry-page4 - E1/2 values are listed verses the...

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E 1/2 values are listed verses the SCE. Not the same as E o values Are also dependent on the supporting electrolyte used for the analysis. Typical range is -1.9 to +0.2 V vs SCE. Supporting Reaction E 1/2 vs SCE electrolyte Cu 2+ Cu 0.04 0.1 M KCl Sn 4+ Sn 2+ -0.25 4 M NH 4 Cl,1 M HCl Pb 2+ Pb -0.40 0.1 M KCl Pb 2+ Pb -0.50 0.4 M Na tartrate Pb 2+ Pb -0.76 1 M NaOH Note how the E
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