Which from following electrolytes, molar conductivity is determined using Kohlrausch theory?
Which from following electrolytes, molar conductivity is determined using Kohlrausch theory?
$\mathrm{KCl}$
$\mathrm{Na}_2 \mathrm{SO}_4$
$\mathrm{CH}_3 \mathrm{COOH}$
$\mathrm{HCl}$
Solution
Kohlrausch law is used to determine limiting molar conductivity of weak electrotytes.
$\mathrm{CH}_3 \mathrm{COOH} \rightarrow$ weak electrolyte
$\mathrm{KCl}, \mathrm{Na}_2 \mathrm{SO}_4, \mathrm{HCl} \rightarrow$ Strong electrolytes