Chemistry - Electrochemistry Question with Solution | TestHub

The conductivity of a weak acid$\mathrm{HA}$of concentration$0.001 \mathrm{mol}{ \mathrm{L}}^{-1}$is$2.0\times {10}^{-5} \mathrm{S}{ \mathrm{cm}}^{-1}$. If${\Lambda }_{\mathrm{m}}^0\left(\mathrm{HA}\right)=190 \mathrm{S}{ \mathrm{cm}}^2{ \mathrm{mol}}^{-1},$the ionization constant$\left({\mathrm{K}}_{\mathrm{a}}\right)$of HA is equal to$\_\_\_\_$$\times {10}^{-6}$
(Round off to the Nearest Integer)