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NEET2020ChemistryIonic EquilibriumActual

The solubility product for a salt of the type AB is 4 × 10 - 8 . What is the molarity of its saturated solution?

Options

  1. A2 × 10 - 4   mol / L
  2. B16 × 10 - 16   mol / L
  3. C2 × 10 - 16   mol / L
  4. D4 × 10 - 4   mol / L

Correct answer

A. 2 × 10 - 4   mol / L

Step-by-step solution

K sp for AB = s 2 = 4 × 10 - 8 ∴ Molarity of solution = solubility = K sp = 4 × 10 - 8 = 2 × 10 - 4   mol / L

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