What is the expression for solubility product of silver chromate if it's solubility is expressed as…
What is the expression for solubility product of silver chromate if it's solubility is expressed as $\mathrm{S}$ mol L${ }^{-1}$ ?
- $2 \mathrm{~S}^2$
- $3 \mathrm{~S}^3$
- $4 \mathrm{~S}^3$
- $27 \mathrm{~S}^4$
Solution
$\begin{array}{ll} & \mathrm{Ag}_2 \mathrm{CrO}_{4(\mathrm{~s})} \rightleftharpoons 2 \mathrm{Ag}_{(\mathrm{aq})}^{+}+\mathrm{CrO}_{4(\mathrm{aq})}^{2-} \\ & \mathrm{Here}, x=2, \mathrm{y}=1 \\ \therefore \quad & \mathrm{K}_{\mathrm{sp}}=x^x \mathrm{y}^{\mathrm{y}} \mathrm{S}^{x+\mathrm{y}}=(2)^2(1)^1 \mathrm{~S}^{2+1}=4 \mathrm{~S}^3\end{array}$
Asked in: MHT CET 2023 (12 May Shift 1)
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