Concept explainers
Interpretation:
The time in hours has to be calculated for the flow of given amount of current.
Concept Introduction:
Faradays First law of
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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- Assume the following electrochemical cell simulates the galvanic cell formed by copper and zinc in seawater at pH 7.90 and 25 C. Zn | Zn(OH)2(s) | OH(aq) || Cu(OH)2(s) | Cu(s) a. Write a balanced equation for the reaction that occurs at the cathode. b. Write a balanced equation for the reaction that occurs at the anode. c. Write a balanced chemical equation for the overall reaction. d. Determine the potential (in volts) of the cell.arrow_forwardAn aqueous solution of an unknown salt of gold is electrolyzed by a current of 2.75 amps for 3.39 hours. The electroplating is carried out with an efficiency of 93.0%, resulting in a deposit of 21.221 g of gold. a How many faradays are required to deposit the gold? b What is the charge on the gold ions (based on your calculations)?arrow_forward
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