The electrochemical cell shown below is a concentration cell. M|M 2+ (saturated solution…
Chemistry · JEE Advanced · NTA Exams — Electrochemistry
The electrochemical cell shown below is a concentration cell. M|M2+ (saturated solution of a sparingly soluble salt, MX2) | |M2+ (0.001 mol dm–3)|M.
The emf of the cell depends on the difference in concentration of M2+ ions at the two electrodes. The emf of the cell at 298 is 0.059 V. (2012)
The solubility product (Ksp ; mol3 dm–9) of MX2 at 298 based on the information available the given concentration cell is (take 2.303 × R × 298/F = 0.059 V)
- 1 × 10–15
- 4 × 10–15
- 1 × 10–12
- 4 × 10–12
Answer
(B) 4 × 10 –15
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