(a)
Interpretation:
The two half-cell reactions for the two electrodes needs to be determined.
Concept introduction:
In an
If oxidation takes place on an electrode, that electrode is called anode. The species in that electrode remove electrons and itself gets oxidized.
If reduction takes place on an electrode, that electrode is called cathode. The species in that electrode absorbs electrons and itself gets reduced.
The electrode potential of cell can be calculated as follows:
(b)
Interpretation:
Magnitude of the current used in
Concept introduction:
In an electrochemical cell, chemical change is used to produce electricity. It uses electricity to produce a non-spontaneous reaction.
Electrolysis is the process in which a non-spontaneous reaction is driven by the application of electric energy.
The half-cell reaction with the lowest reduction potential reduces 1st in electrolysis process.
1 mole of electron = 96485 C
(c)
Interpretation:
The gas that collected near the anode shouldbe determined and volume of that gas should be calculated.
Concept introduction:
In an electrochemical cell, there are two electrodes that can be observed.
If oxidation takes place on an electrode, that electrode is called anode. The species in that electrode remove electrons and itself gets oxidized.
If reduction takes place on an electrode, that electrode is called cathode. The species in that electrode absorbs electrons and itself gets reduced.
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General Chemistry: Principles and Modern Applications (11th Edition)
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