Given :
$\Lambda_m^{\infty}(CH_3COONa)=91.1Scm^2mol^{-1}$
$\Lambda_m^{\infty}(HCl)=426.2Scm^2mol^{-1}$
$\Lambda_m^{\infty}(NaCl)=126.5Scm^2mol^{-1}$
$\begin{array}{1 1}(a)\;360\\(b)\;400.92\\(c)\;390.8\\(d)\;396.2\end{array}$
