Thank you for reporting, we will resolve it shortly
Q.
The molar conductivities of $HCl, NaCl, CH_{3}COOH$ and $CH_{3}COONa$ at infinite dilution follow the order
KVPYKVPY 2015Electrochemistry
Solution:
Molar conductivity always increases with increase in concentration of electrolyte. Among the given compounds, the molar conductivity depends upon the concentration of $H^{+}$ ions. Thus, stronger the acid more will be $H^{+}$ ions and more will be the molar conductivity. The order of acidic strength is
$\underset{\text{Strong acid}}{HCl} > \underset{\text{Weak acid}}{CH_{3} COO} >\underset{\text{Neutral salt}}{NaCl} >\underset{\text{Salt of weak acid}}{CH_{3} COONa}$
Thus, molar conductivity at infinite dilution follows the order
$HCl > CH_{3} COOH > NaCl > CH_{3} COONa$