Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below: Cr20,2- * (aq)+ 12e¯ → 2Crs) + 7H20 How many hours would it take to completely convert 3.2 moles of electrons to elemental chromium if a current of 6.7 A and a voltage of 5.0 V are used ? (aq) + 14H*

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.