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Concentration of the Ag+ ions in a saturated solution of Ag2C2O4 is 2.2 10-4 mol L-1. Solubility product of Ag2C2O4 is
(3) 5.3 10-12
Ag2C2O4(s) 2Ag+(aq) + C2O42-(aq)
[Ag+] = 2.2 10-4 M ⇒ [C2O42-] = 1.1 10-4 M
Ksp = [Ag+]2[C2O42-]
= (2.2 10-4)2 (1.1 10-4)
= 4.84 10-8 1.1 10-4
= 5.3 10-12
Answer: (3)
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