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How does voltage affect the Mass deposited at the Cathode during Electrolysis?
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How does voltage affect the Mass deposited at the Cathode during Electrolysis? Electrolysis is the process in which a chemical reaction is caused by the passage of an electric current. When a salt is dissolved in water, its ions become free to move so the solution can be electrolyzed. The products of the electrolysis depend on the chemical solution, its strength and the type of electrode. The cathode is negatively charged and therefore attracts to it positive ions (normally metals and hydrogen). The more reactive substance stays in the solution whereas the less reactive is released and appears as a gas (hydrogen) or a coating of metal. At the anode (positively charged) the negative charges are given up; for example chlorine or oxygen ions become elements. Electrolysis is used to produce gases or purify metals. Electrolysis only occurs in when an ionic substance is molten or is in solution. A substance...
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