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QUESTION 4 An aqueous solution of 4 mol/L nitric acid is electrolyzed in an electrolytic cell using graphite electrodes.

a) Write the chemical symbols for all the ions present in the electrolytic cell. (1 mark]

b) Name the gas given off at the cathode. [1 mark]
c) Name the gas given off at the anode. [1 mark]

d) Write the half reaction equations at the;

i) Cathode : [1 mark)
ii) Anode : [1 mark]

e) The overall anode - cathode reaction equation taking place in the electrolytic cell. [1 mark]​

Respuesta :

pstnonsonjoku

The gas given off at the cathode is hydrogen while the gas given off at the anode is oxygen.

What is electrolysis?

The term electrolysis has to do with the decomposition of a substance by the passage of direct current through it.

The ions present in the system are H^+, OH^- and NO3^- ions. The gas given off at the cathode is hydrogen while the gas given off at the anode is oxygen.

The half reaction equation of the reduction is;

2H^+(aq) + e ----->H2(g)

The oxidation half reaction equation is;

4OH^- (aq)------> 2H2O(l) + 4e

The overall equation is;

4H^+(aq) + 4OH^- (aq)------> 4H2(g) + 2H2O(l) + 4e

Learn more about electrolysis:https://brainly.com/question/12054569

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