Question

When considering the equilibrium between copper(I) carbonate and its aqueous ions, what could be added to solution to promote the precipitation of copper(I) carbonate

Answer 1

potassium carbonate

Step-by-step explanation:

Let us consider the equilibrium for the dissociation of copper I carbonate;

Cu2CO3(s)------>2Cu^+(aq) + CO3^2-(aq)

Now we need to add a substance that has a common ion with the solute. The addition of this substance will decrease the solubility of the solute thereby increasing the concentration of the promote the precipitation of copper(I) carbonate precipitate in the system.

Hence, addition of potassium carbonate promotes the precipitation of copper(I) carbonate.