Question no 2 (5 points) Following question is based on electro analytical techniques. a) (2 points) Explain the term Coulometry. Draw a schematic diagram of a coulometric cell b) (3 points) Consider the controlled potential electrolysis of a Zr solution using the following electrochemical cell set to - 1.207 V. SSCE||Zn?" (aq) Zn(s) 3.440 coulombs of charge is collected in the electrolysis of a 50ml solution. Zn?" +2e Zn -0.7628 v AgCle . Ag+CH 0.2224v 1) What was the original Zn* concentration before the electrolysis? it) How many moles of Znare left in the solution? Question no 3. (5 points) a) Discuss the basic principle of electrode kinetics. b) Choose any model to explain electrochemical kinetics