Equilibrium Question 309
Question: If solubility product of $ HgSO_4 $ is $ 6.4\times {10^{-5}} $ , then its solubility is [BHU 2004]
Options:
A) $ 8\times {10^{-3}}mole/litre $
B) $ 6.4\times {10^{-5}}mole/litre $
C) $ 6.4\times {10^{-3}}mole/litre $
D) $ 2.8\times {10^{-6}}mole/litre $
Show Answer
Answer:
Correct Answer: A
Solution:
$ HgSO_4\ \to \ \underset{x,}{\mathop{H{g^{++}}}},+\underset{x}{\mathop{SO_4^{–}}}, $
$ K _{sp}=x^{2} $ ; $ x=\sqrt{K _{sp}} $ ; $ x=\sqrt{6.4\times {10^{-5}}} $
$ x=8\times {10^{-3}} $ mole/litre.
