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Cadmium amalgam is prepared by electrolysis of a solution of CdCl using a mercury cathode. Find how long a current of 5 ampere should

Cadmium amalgam is prepared by electrolysis of a solution of CdCl using a mercury cathode. Find how long a current of 5 ampere should be passed in order to prepare 12% Cd-Hg amalgam on a cathode of 2 g mercury. At mass of Cd = 112.40.

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