Every question from past board papers on Kohlrausch's law and applications, newest paper first. Open any question for its full worked answer.
If the molar conductivity (\(\Lambda_m\)) of a 0.050 mol \(\mathrm{L^{-1}}\) solution of a monobasic weak acid is 90 S \(\mathrm{cm^2\,mol^{-1}}\), its extent (degree) of dissociation will be
[Assume \(\Lambda^\circ_+ = 349.6\) S \(\mathrm{cm^2\,mol^{-1}}\) and \(\Lambda^\circ_- = 50.4\) S \(\mathrm{cm^2\,mol^{-1}}\).]
The molar conductance of NaCl, HCl and \(CH_3COONa\) at infinite dilution are 126.45, 426.16 and 91.0 S cm\(^2\) mol\(^{-1}\) respectively. The molar conductance of \(CH_3COOH\) at infinite dilution is. Choose the right option for your answer.
