32)
It is obvious that one mole of Mg2+ and Al3+ require 2 mol of electrons
(2F) and 3 mol of electrons (3F) respectively The charge passed through
the electrolytic cell during electrolysis is equal to the product of current
in amperes and time in seconds In commercial production of metals,
current as high as 50,000 amperes are used that amounts to about
0 518 F per second