Equilibrium Question 213

Question: $ K _{sp} $ for sodium chloride is $ 36mol^{2}/litre^{2}. $ The solubility of sodium chloride is [BHU 1981]

Options:

A) $ \frac{1}{36} $

B) $ \frac{1}{6} $

C) 6

D) 3600

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Answer:

Correct Answer: C

Solution:

NaCl ⇌ $ \begin{matrix} N{a^{+}}, & + & ,C{l^{-}} \\ S, & {} & ,S \\ \end{matrix} $

$ K _{sp}=S^{2} $ , $ S=\sqrt{K _{sp}}=\sqrt{36}=6 $ .



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