A) \[5.7\times {{10}^{-12}}\]
B) \[1.32\times {{10}^{-12}}\]
C) \[7.5\times {{10}^{-12}}\]
D) \[1.74\]
Correct Answer: D
Solution :
| \[\Lambda _{m}^{o}=\frac{k\times 1000}{S}\] |
| \[S=\frac{k\times 1000}{\Lambda _{m}^{o}}\] |
| \[=\frac{1.85\times {{10}^{-6}}\times 1000}{140\times {{10}^{-4}}}=1.321M\] \[AB{{A}^{+}}+{{B}^{-}}\] |
| \[{{K}_{sp}}=\left[ {{A}^{+}} \right]\left[ {{B}^{-}} \right]={{S}^{2}}={{(1.321)}^{2}}\] |
| \[=1.74mo{{l}^{2}}{{L}^{-2}}\] |
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