Determining molar mass by electrolysis. An electrolysis cell containing MSO4 solution is operated for 1.0hr at constant current of 0.200 A. If the current efficiency is 95%, and 0.399g of M plates out, what is the atomic weight of the element M?

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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.