Chemistry - Electrochemistry Question with Solution | TestHub

Given conductivity, $\kappa =1.3\times 10^{-4}$ ohm${}^{-1}$ cm${}^{-1}$

Concentration, $C=0.001$ M

The formula for molar conductivity is:

${\Lambda }_m=\frac{\kappa \times 1000}{C}$

Substituting the given values:

${\Lambda }_m=\frac{1.3\times 10^{-4}\times 1000}{0.001}$

${\Lambda }_m=\frac{1.3\times 10^{-1}}{10^{-3}}$

${\Lambda }_m=130$ ohm${}^{-1}$ cm${}^2$ mol${}^{-1}$

Answer: $130$ ohm${}^{-1}$ cm${}^2$ mol${}^{-1}$