Concept explainers
Interpretation:
The oxidation state of gold in the given gold salt has to be found.
Concept Introduction
Oxidation number of an element represents the number of electrons gained or lost by an element during a
Faradays first law of electrolysis says that the quantity of substance deposited on an electrode is proportional to the charge passed through the solution.
Where,
Faradays second law of electrolysis says that when same amount of electricity is passed through different solutions the amount of substance deposited is proportional to their equivalent weight.
The two laws can be summarised as given below
Where
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Chemistry: Atoms First
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- One of the few industrial-scale processes that produce organic compounds electrochemically is used by the Monsanto Company to produce1,4-dicyanobutane. The reduction reaction is 2CH2CHCH+2H++2eNC(CH2)4CN The NC(CH2)4CN is then chemically reduced using hydrogen gas to H2N(CH2)6NH2, which is used in the production of nylon. What current must be used to produce 150.kg NC(CH2)4CN per hour?arrow_forwardFor the reaction Cu2+(aq) + Zn(s) → Cu(s) + Zn2+ (aq), why can’t you generate electric current by placing a piece of copper metal and a piece of zinc metal in a solution containing CuCl2(aq) and ZnCl2(aq)?arrow_forwardA solution of copper(II) sulfate is electrolyzed by passing a current through the solution using inert electrodes. Consequently, there is a decrease in the Cu2+ concentration and an increase in the hydronium ion concentration. Also, one electrode increases in mass and a gas evolves at the other electrode. Write half-reactions that occur at the anode and at the cathode.arrow_forward
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