The resistance of a conductivity cell containing 0.001M KCl solution at 298 K is 1500 Ω. What is the cell constant if the conductivity of 0.001M KCl solution at 298 K is 0.146 × 10–3 S cm–1.
Given -
Resistance of a conductivity cell, R = 1500
Electrolytic conductivity of a solution, κ = 0.146 × 10–3 S cm–1
Cell constant = ?
Conductivity, κ =
Cell constant = κ × R
= 0.146 × 10–3 S cm–1×1500
Cell constant = 0.219 cm-1
The cell constant of the cell containing 0.001M KCl solution at 298 K is 0.219 cm-1