182. In what sequence do metals stand out on the cathode during the electrolysis of a solution containing Ni2+, Cu2+, Ag+, Fe2+ ions. Make a diagram of the electrode processes during the electrolysis of an aqueous solution of NiSO4. How many grams of nickel will be released at the cathode if 13.4 Ah is spent on the process. Nickel current efficiency is 80%.

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