An electrolysis cell is set up with the cathode producing H₂ gas and with an unknown metal at the anode. The anode loses 0.166 g during the time that 72.25 mL of H₂ is collected at a pressure of 0.994 atm and temperature of 22.0 C. To three significant figures, what is the molar mass of the metal?

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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.