# Electrochemical cell

Chemistry Level pending

The electrochemical cell shown below is a concentration cell.

M I M2+ (saturated solution of a sparingly soluble salt, $$MX_2$$ ) II M2+ (0.001 mol dm$$^{-3}$$) I M

The emf of the cell depends on the difference in concentrations of M$$^{2+}$$ ions at the two electrodes. The emf of the cell at 298 K is 0.059 V.

The solubility product ( $$K_{sp}: mol^3 dm^{-9}$$ ) of $$MX_2$$ at 298 K based on the information available for the given concentration cell is (take 2.303 x R x 298/F = 0.059 V)

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