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You need to decide on the constant negative potential that is initially applied in the ASV procedure in order to reduce the Cd2+ and Fe2+
You need to decide on the constant negative potential that is initially applied in the ASV procedure in order to reduce the Cd2+ and Fe2+ into a hanging mercury drop electrode while avoiding deposition of In + . Assuming that [Cd2+ ] and [Fe2+ ] is 1.0 M, carefully determine the least negative appropriate deposition potential (Edep ) and justify your answer. The reference electrode used is Ag/AgCl. You do not know the [In+ ] in solution. (The standard reduction potentials, E 0 , for Cd2+ is -0.40 V/SHE, Fe2+ is -0.44 V/SHE, In+ is -0.14 V/SHE, and Ag/AgCl is 0.197 V/SHE.)
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