(a) Calculate the standard potential for the reaction (b) Give a schematic representation of a cell.

(a) Calculate the standard potential for the reaction

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(b) Give a schematic representation of a cell with a silver
indicator electrode and an SCE as reference that could be used for determining
AsO43-.

(c) Derive an equation that relates the measured potential
of the cell in (b) to pAsO4 (assume that the junction potential is
zero).

(d) Calculate the pAsO4 of a solution that is
saturated with Ag3AsO4 and contained in the cell described in (b) if
the resulting potential is 0.193 V

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