At 25^∘ C the standard electrode potential for the Ag^+

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At $25^{\circ} \mathrm{C}$ the standard electrode potential for the $\mathrm{Ag}^{+} |$ Ag electrode is $0.7991 \mathrm{V},$ and the solubility product for AgI is $8.2 \times 10^{-17} .$ What is the standard electrode potential for $\mathrm{I}^{-}|\mathrm{AgI}| \mathrm{Ag} ?$

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Key Concepts

Standard Electrode Potential

This concept refers to the inherent voltage associated with a redox reaction at standard conditions, typically 1 M concentration for solutions and 1 atm pressure for gases, measured against the standard hydrogen electrode. It provides the thermodynamic tendency of the electrode to be reduced or oxidized.

Solubility Product (Ksp)

The solubility product is an equilibrium constant specific to a sparingly soluble salt, representing the product of the molar concentrations of its constituent ions each raised to the power of their stoichiometric coefficients. It is used to predict the extent of dissolution and precipitation of a salt in solution.

Nernst Equation

The Nernst equation relates the electrode potential under non?standard conditions to the standard electrode potential, temperature, and the reaction quotient. It accounts for deviations from standard state conditions by incorporating the effect of ion concentrations on the electrode potential.

Sparingly Soluble Electrode

This concept involves electrodes that include a sparingly soluble salt, creating an equilibrium between the solid salt and its dissociated ions in solution. The electrode potential in such a system is influenced by both the standard electrode potential of the redox couple and the solubility equilibrium governed by the solubility product.

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