Question

Which of the next salts have better solubility in 1.0M NH3 than in distilled water? $N{a}_{2}C{O}_3,KCl,AgBr,KN{O}_3$

Answer 1

Answer
The silver salt...........
Explanation:
The silver halides are as soluble as bricks in aqueous solution......i.e. we can represent the reaction by....
Silver bromide precipitates from solution as a curdy, cream-coloured solid. We can increase the proportion of silver ion that remains in solution by adding aqueous ammonia, which participate in the following complexation equilibrium......
$AgBr\left(s\right)+2N{H}_3\left(aq\right)\to \left[Ag\right(N{H}_3{)}_2{]}^{+}+B{r}^{-}$
The equilibrium will move to the right hand side as ammonia is added.....These questions can be approached quantitatively given (i) $K_{sp}$ for $AgBr$ , and (ii) $K_f$ for $AgBr$ for $AgBr$