Calculate the number of kilowatt-hours of electricity required to produce 1.0 x 103 kg of aluminum by electrolysis of Al* if the applied voltage is 4.50 V and the process is 45% efficient. (1 kWh = 3.6 x10° J and 1 J = 1C x 1V)

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A: The answer is as follows:  

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Q: Draw the resosnance structures of the given charged molecule

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A: Since you have posted multiple unrelated questions, we are entitled to answer the first only.  

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A: The answer is as follows:  

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Q: pH

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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.