Question

When one coulomb of electricity is passed through an electrolytic solution, the mass deposited on the electrode is equal to:

• A. equivalent weight
• B. molecular weight
• C. electochemical equivalent
• D. one gram

Answer 1

Answer: (C)

electochemical equivalent

Electrochemical equivalent (ECE) may be defined as “the mass of the ion deposited by passing a current of one Ampere for one second (i.e., by passing Coulomb of electricity)”. Its unit is gram per coulomb.

It is represented by $Z$.