In the Hall–Héroult process for the electrolytic production of aluminum, Al3+ ions from Al2O3 dissolved in molten cryolite (Na3AlF6) are reduced to Al(l) while carbon (graphite) is oxidized to CO2 by reaction with oxide ions.(a) Write balanced equations for the half-reactions at the anode and at the cathode, and for the overall cell reaction.(b) If a current of 50,000 A is passed through the cell for a period of 24 hours, what mass of aluminum will be recovered?

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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.