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Question
Sodium ion, Na+, in solution can be reversible reduced at a mercury electrode to sodium mercury amalgam, Na (Hg), as is summarized in the reaction below
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The effect of electrode potential on the direction of this reaction is graphically represented as
Match each figure label 1,2,3,4,5,6, E7,E8, (a), (b), (c) to its description.
Answer Choices
Overpotential for Oxidation ------------------- (1 or 2 or 3 or 4 or 5 or 6)
Overpotential for reduction --------------------- (1 or 2 or 3 or 4 or 5 or 6)
High barrier to oxidation ----------------------- (1 or 2 or 3 or 4 or 5 or 6)
High barrier to reduction ------------------------ (1 or 2 or 3 or 4 or 5 or 6)
Low barrier to reduction ------------------------ (1 or 2 or 3 or 4 or 5 or 6)
Low barrier to oxidation ------------------------ (1 or 2 or 3 or 4 or 5 or 6)
Reaction coordinate at Equilibrium ------------------- (a) or (b) or (c)
Reaction coordinate for oxidation process ----------- (a) or (b) or (c)
Reaction coordinate for reduction process ------------ (a) or (b) or (c)
Reduction potential ------------------------------------- (E7 or E8)
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