Question

For the given data, the reaction dynamics favour precipitation - True or False? The solution concentration of $B{a}^{2+}$ ions is $1\times {10}^{-3}M$ and that of $S{O}_4^{2-}$ ions is $2\times {10}^{-4}M$; $K_{sp}\left(BaS{O}_4­\right)$ $1\times {10}^{-10}$.

• A. True
• B. False

Answer 1

The correct option is A

True

$BaS{O}_4\left(s\right)\rightleftharpoons B{a}^{2+}\left(aq\right)+S{O}_4^{2-}\left(aq\right)$

$K_{sp}\left(BaS{O}_4\right)$ = $1\times {10}^{-10}$

Ionic product of $BaS{O}_4$ = $\left[B{a}^{2+}\right]\left[S{O}_4^{2-}\right]$ = $2\times {10}^{-7}$ $>$ $K_{sp}$ ($BaS{O}_4$)

Hence, the reaction dynamics favour precipitation.