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Copper II oxide was added to dilute hydrochloric acid and black sediments formed but why did acidity become pH1?
Wiki User
∙ 14y ago
Sheer speculation. Balanced equation first.
CuO + 2HCl >> CuCl2 + H2O
I would speculate that the Copper (II) Chloride in percipitating did not eliminate all H(+) and Cl(-) ions, so pH is still high.
Wiki User
∙ 14y ago
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