A solution containing vanadium (chemical symbol V) in an unknown oxidation state was electrolyzed with a current of 1.48 A for 37.4 min. It was found that 0.438 g of V was deposited on the cathode. What was the original oxidation state of the vanadium ion? The original oxidation state of the vanadium ion =

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Q: What is the oxidation number of diatomic elements? O 2 O +1

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Q: i. Summarise the above potential data by means of a Latimer and Frost diagram.

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Q: The hydroperoxide ion, HO2–(aq), reacts with permanganate ion, MnO4–(aq) to produce MnO2(s) and…

A: HO2–(aq) reacts with MnO4–(aq) to give MnO2(s) and O2(g).

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.