The standard electrode potentials for certain half cell reactions are shown below.

      

The standard electrode potentials for certain half cell reactions are shown below.
Q591720191230.png

(a) (i) Identify the strongest oxidizing agent.
(ii) Write the cell equation for a cell formed by connecting W and X cells.
(iii) Calculate the e.m.f of cell in a(ii) above.
(b) During electrolysis of silver nitrate, a current of 0.5A was passed through the electrolyte for 3 hours.
(i) Write the equation for the reaction which took place at the anode.
(ii) Calculate the mass of silver deposited. (Ag = 108, IF = 96500C)
(iii) Give two reasons why it is necessary to electroplate iron with silver.

  

Answers


Maurice
(a) Q591720191235.png

(b) Q591720191237.png

(iii) -To improve the appearance
-Prevent iron from rusting.
maurice.mutuku answered the question on September 17, 2019 at 09:39


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