In an electrolytic cell, the electrode that acts as a source of electrons to the

Question

In an electrolytic cell, the electrode that acts as a source of electrons to the solution is called the chemical change that occurs at this electrode is called. anode, oxidation anode, reduction cathode, oxidation cathode, reduction cannot answers unless we know the species being oxidized and reduced. an aqueous copper(ii) sulfate solution is electrolyzed for 45 minutes. a 3.2 ampere current is used. what mass of copper is produced? 0.95g 1.9 g 2.8 g 4.6 g 5.5 g which of the following shorthand galvanic cell notations for the zinc - copper standard cell is correct? cu^2 + zn rightarrow zn^2 + cu

Explanation / Answer

42.
In an electrolytic cell at Cathode there is always reduction takes place and at anode there is always oxidation takes place.
Answer : C
43.
m = Z * I * t
Z = electro chemical equivalent of Copper
I = current in ampheres
T = time in seconds
m = 0.0003281*3.2*45*60
m = 2.84 g
Answer : C
44.
Cu+2/Cu//Zn/Zn+2
Cathode half cell(left hand side) // Anode half Cell (right han side)
Answer : A

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