Find the charge required to flow through an electrolyte to liberate on

1.	Find the charge required to flow through an electrolyte to liberate one atom of (a) a monovalent material and (b) a divalent material.
Answer» (a) 1eq. mass of the substance requires 96500 coulombs Since the element is monoatomic, thus eq. mass = mol. Mass 6.023 × 10²³ atoms require 96500C 1 atoms require (96500/6.023) x 10²³C = 1.6 x 10^-19C (b) Since the element is diatomic eq.mass = (1/2) mol.mass ∴ (1/2) × 6.023 × 10²³atoms 2eq. 96500 C => 1 atom require = (96500 x 2)/6.023 x 10²³ = 3.2 x 10^-19C

Find the charge required to flow through an electrolyte to liberate one atom of (a) a monovalent material and (b) a divalent material.

Answer»

(a) 1eq. mass of the substance requires 96500 coulombs

Since the element is monoatomic, thus eq. mass = mol. Mass

6.023 × 10²³ atoms require 96500C

1 atoms require (96500/6.023) x 10²³C = 1.6 x 10^-19C

(b) Since the element is diatomic eq.mass = (1/2) mol.mass

∴ (1/2) × 6.023 × 10²³atoms 2eq. 96500 C

=> 1 atom require = (96500 x 2)/6.023 x 10²³ = 3.2 x 10^-19C