ElectrochemistryHard
Question
Time required to deposit one millimole of aluminum metal by the passage of 9.65 amperes through aqueous solution of aluminum ion is
Options
A.30 s
B.10 s
C.30,000 s
D.10,000 s
Solution
l3+ + 3e- → Al
1mole requires = 3 × 96500 coulomb
1 millimole (10-3mol)requires
= 3 × 96500 × 10-3C
we know that, Q = i t
or t =

=
30 sec.
1mole requires = 3 × 96500 coulomb
1 millimole (10-3mol)requires
= 3 × 96500 × 10-3C
we know that, Q = i t
or t =

=
30 sec.Create a free account to view solution
View Solution FreeMore Electrochemistry Questions
Which of the following is/are function(s) of salt - bridge ?...Passage of 96,500 coulomb of electricity liberates ________ L of O2 at 273°C and 2 atm during electrolysis....After some time, the voltage of an electrochemical cell becomes zero. This is because...What is cell entropy change of the following cell ?Pt(s) | H2 (g) | CH3COOH, HCl || KCl (aq) | Hg2Cl2 (s) | Hg P = 1 atm...Which of the following facts is not true ?...