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I am wondering why acidified copper sulfate is used instead of regular copper sulfate solutions in electrolytic cells? What benefit does the acidified solution give?

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    $\begingroup$ It prevents hydrolysis of copper(II) into copper hydroxide. $\endgroup$ Jun 27 at 9:52
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    $\begingroup$ Your own reasoning, based on searching, reading and analysis, is supposed to be present to avoid the question closure for lack of own effort. $\endgroup$
    – Poutnik
    Jun 27 at 13:09
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The solutions of $\ce{CuSO4}$ are slightly acidic. This shows that a small proportion of the ions $\ce{Cu^{2+}}$ do react with water in an equilibrium : $$\ce{Cu^{2+} + H2O <=> Cu(OH)_2 + 2 H^+}$$ If some acid is added to such a solution, the equilibrium is displaced to the left-hand-side by action of mass, and no precipitate of $\ce{Cu(OH)2}$ appears in the solution.

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