A) \[5\times {{10}^{-13}}\]
B) \[7.4\times {{10}^{-7}}\]
C) \[5\times {{10}^{-6}}\]
D) \[2.5\times {{10}^{-6}}\]
Correct Answer: C
Solution :
\[\underset{s}{\mathop{AgCl}}\,\underset{s}{\mathop{A{{g}^{+}}}}\,+C{{l}^{-}}\] \[{{K}_{sp}}={{s}^{2}}\] \[{{s}^{2}}={{K}_{sp}}\] \[s=\sqrt{{{K}_{sp}}}\] \[=\sqrt{25\times {{10}^{-12}}}=5\times {{10}^{-6}}\]
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