ElectrochemistryEasy
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
Four moles of electrons were transferred from anode to cathode in an experiment on electrolysis of water. The total volu...For the cell Zn|Zn2+||Cu2+|Cu, if the concentration of both, Zn2+ and Cu2+ ions are doubled, the EMF of the cell...Consider the following reduction processes :$${{Al}^{3 +} + 3e^{-} \rightarrow Al(s),E^{\circ} = - 1.66\text{ }V }{{Fe}^...The electrode through which electrons enter the electrolytic solution is...When silver chloride is dissolved in a large excess of ammonia, practically all silver ion can be assumed to exist in fo...