Calculate the value of E°cell for a galvanic cell based on the following half reactions.  Be sure to report your answer with the correct significant figures and units.  Include a space between the value and unit.                   E° (V) Ni2+(aq) + 2e– → Ni(s)                     −0.257 Cr3+(aq) + 3e– → Cr(s)                    −0.744

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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.