Question

If $ HCl $ is added to a solution of $ copper\left( {II} \right)hydroxide $ how does this affect the solubility of the copper salt?

Answer 1

Hint: In order to this question, to know the effect when $ HCl $ is added to a solution of $ copper\left( {II} \right)hydroxide $ , we should write the reaction of them, and check what happened with their products.

Complete step by step answer:
 $ Cu{(OH)_2} $ is quite insoluble in water.
 $ CuC{l_2} $ is quite soluble in water.
So, the reaction is:
 $ Cu{(OH)_2}(s) + 2HCl(aq) \to CuC{l_2}(aq) + 2{H_2}O(aq) $
In solution, the copper ion probably exists as $ {[Cu{(O{H_2})_6}]^{2 + }} $ , a beautiful blue coloured species.
Hence, when $ HCl $ is added to a solution of $ copper\left( {II} \right)hydroxide $ , it should increase the concentration of copper in solution.

Note:
Copper is one of the alleged "respectable metals." Just like the honorable gases will be gases that don't promptly respond, the honorable metals don't promptly respond in a ton of cases. They incorporate different components, for example, gold, so this wonder isn't exceptional to copper using any and all means.