# Question #d0cfc

##### 1 Answer

#### Answer:

0.25 mole

#### Explanation:

We should determine which reactions are happening on every electrode.

Note that silver is getting reduced (at the cathode) as it is illustrated in the following reduction equation:

And, water is getting oxidized (at the anode) as it is illustrated in the following oxidation equation:

The overall redox reaction would then be:

Reduction:

Oxidation:

Redox:

The redox equation shows that for every 4 moles of silver reduced, 2 moles of water are oxidized to produce 1 mole of oxygen.

Therefore, the number of mole of oxygen produced when 1 mole of silver is reduced (precipitated):

Here is a video that explains electrolysis in general:

**Electrochemistry | Electrolysis, Electrolytic Cell & Electroplating.**