A steady current of 1.5 A flows through a copper voltmeter for 10 min. If the electrochemical equivalent of copper is , the mass of copper deposited on the electrode will be:
0.40 g
0.50 g
0.67 g
0.27 g
According to Faraday's First Law of Electrolysis, the mass of a substance deposited at an electrode is given by the formula:
Where: (electrochemical equivalent) (current) (time)
First, calculate the total charge ():
Now, calculate the mass () deposited:
Therefore, 0.27 g of copper is deposited on the electrode.
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