Equilibrium Question 174

Question: Solubility product of $ BaCl_2 $ is $ 4\times {10^{-9}} $ . Its solubility in moles/litre would be [AFMC 1982; Roorkee 1990; BHU 2000]

Options:

A) $ 1\times {10^{-3}} $

B) $ 1\times {10^{-9}} $

C) $ 4\times {10^{-27}} $

D) $ 1\times {10^{-27}} $

Show Answer

Answer:

Correct Answer: A

Solution:

$ K _{sp}=4S^{3}, $

$ S^{3}=\frac{4\times {10^{-9}}}{4}={10^{-9}} $

$ \therefore ,S={10^{-3}}M $ .



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