Equilibrium Question 242
Question: A saturated solution of $ Ag_2SO_4 $ is $ 2.5\times {10^{-2}} $ M; The value of its solubility product is [Pb.CET 2004]
Options:
A) $ 62.5\times {10^{-6}} $
B) $ 6.25\times {10^{-4}} $
C) $ 15.625\times {10^{-6}} $
D) $ 3.125\times {10^{-6}} $
Show Answer
Answer:
Correct Answer: A
Solution:
For $ Ag_2SO_4\to \underset{2x}{\mathop{2A{g^{+}}}},+\underset{x}{\mathop{SO_4^{–}}}, $
$ K _{sp}={{(2x)}^{2}}.x $ ; $ K _{sp}=4x^{3} $ ; $ K _{sp}=4\times {{(2.5\times {10^{-2}})}^{3}} $
$ K _{sp}=62.5\times {10^{-6}} $
