Question

One faraday will oxidize ____ mole(s) of cu to cu2+ ions

Answer 1

One faraday will oxidize 1/2 mole(s) of cu to cu2+ ions.

Solution:

According to Faraday's first law, "the amount of current passed through the electrode is directly proportional to the number of substances liberated from it."

Thus the reduction of 1 mole of Cu2+

to Cu2+ can be represented as:

Cu 2+ 2e-  →Cu

As we know, in this reaction, there are two moles of electron involved, thus the amount of charge required is 2F.


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