Question

The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S cm² mol⁻¹. Calculate the conductivity of the solution.

Answer 1

Check the attachement given to this answer]

Answer 2

Explanation:

Molar conductivity is defined as the conductivity divided by the molar concentration of an electrolytic solution.

Mathematically,      $\Lambda _{m} = \frac{conductivity}{concentration}$

Since, it is given that molar conductivity is 138.9 S $\text{cm^{2} mol^{-1}}$ and concentration is 1.5 M.

Hence, calculate the conductivity as follows.

                   $\Lambda _{m} = \frac{conductivity}{concentration}$

            138.9 S $\text{cm^{2} mol^{-1}}$ = \frac{conductivity}{1.5 M}[/tex]

                 conductivity = 208.35 S $cm^{-1}$

Thus, we can conclude that conductivity of the given solution is 208.35 S $cm^{-1}$.