A galvanic cell consists of a nickel cathode immersed in a NISO4 solution and a manganese anode immersed in a MnSO4 solution. A salt bridge connects the two half-cells. (a) Write a balanced equation for the cell reaction. + (b) A current of 1.42 A is observed to flow for a period of 1.93 hours. How much charge passes through the circuit during this time? How many moles of electrons is this charge equivalent to? (c) Calculate the change in mass of the nickel electrode. + (d) Calculate the change in mass of the manganese electrode. g is gis C mol

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A:

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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.