Question

Question 34 :
Calculate electro-chemical equivalent of Al, if its atomic weight 27. (given valency of aluminium =3)
0.000279
0.000139
0.0000932
0.0000941​

Answer 1

Answer:

321660 coulombs69500 coulombs289500

Answer 2

The electro-chemical equivalent of AI is 0.0000932

Explanation:

• The electro-chemical equivalent (ECE) is the amount of substance in grams produced or consumed by the passage of one coulomb of electricity in an electrochemical reaction.
• It is also known as Faraday's Law of Electrolysis .
• The Formula is given as W= z.i.t where W = weight produced at an electrode , z= Electrochemical equivalent , i= current and t = time.
• Electro-chemical equivalent of Aluminium ( Al) is 0.00009316 which is rounded off to 0.0000932.