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NEET2017ChemistryIonic EquilibriumActual

Concentration of the Ag + ions in a saturated solution of Ag 2 C 2 O 4 is 2 .2 × 10 - 4   mol   L - 1 . Solubility product of Ag 2 C 2 O 4 is

Options

  1. A2.42 × 10 - 8
  2. B2.66 × 10 - 12
  3. C4.5 × 10 - 11
  4. D5.3 × 10 - 12

Correct answer

D. 5.3 × 10 - 12

Step-by-step solution

Ag 2 C 2 O 4 s ⇌ 2 Ag + aq + C 2 O 4 2 - aq 2 s s K sp = Ag + 2   C 2 O 4 2 - Ag + = 2 .2 × 10 - 4 mol / L ∴         C 2 O 4 2 - = 2 .2 × 10 - 4 2   M = 1 .1 × 10 - 4 M ∴          K sp = 2 .2 × 10 - 4 2   1 .1 × 10 - 4   ( mol / L ) 3 = 5 .324 × 10 - 12   ( mol / L ) 3 .

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