Interpretation:
The method to improve the solubility of solid Cu(OH)2 in an aqueous solution needs to be explained.
Concept introduction:
The strong acid, proton
The solubility of copper hydroxide, Cu(OH)2 in an aqueous solution may be improved by using the above acid-base reaction.
Answer to Problem 6E
The solubility of Cu(OH)2 in water can be improved by adding an acid, viz., hydrochloric acid, HCl to the solution.
Explanation of Solution
The solubility of Cu(OH)2 in water is given as per the reaction below:
The solubility product constant, Ksp for the solubility equilibrium above is given as
Where the square braces, [..] denote the molar concentrations of the aqueous species at equilibrium.
Ksp is a
Hydrochloric acid, HCl is a strong electrolyte in aqueous solution and ionizes as per the equation below.
The addition of HCl to the aqueous solution produces protons,
The above reaction removes
The addition of a strong acid will increase the solubility of Cu(OH)2 in water.
Chapter U6 Solutions
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