Question

The molar conductivity of acetic acid at infinite dilution is $390.7$ and for $0.1M$ acetic acid solution is $5.2Sc{m}^{2}mo{l}^{-1}$. Degree of dissociation of acetic acid is X%, value of 3X is:

Answer 1

The degree of dissociation ${}^{\prime }{\alpha }^{\prime }$ is given by-

$\alpha =\frac{{\Lambda }_v}{{\Lambda }_{\infty }}=\frac{5.2}{390.7}$

$\alpha =0.0133$ or $1.33$

$X=1.33\Rightarrow 3X\approx 4$