Resistance of a $0.1\mathrm{M}\mathrm{ }\mathrm{K}\mathrm{C}\mathrm{l}$ solution in a conductance cell is $300\mathrm{ }\mathrm{o}\mathrm{h}\mathrm{m}$ and specific conductance of $0.1\mathrm{M}\mathrm{ }\mathrm{K}\mathrm{C}\mathrm{l}$ is $1.33\mathrm{ }\times 10^{-2}\mathrm{o}\mathrm{h}{\mathrm{m}}^{-1}\mathrm{c}{\mathrm{m}}^{-1}$ . The resistance of $0.1\mathrm{M}\mathrm{ }\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}$ solution in the same cell is $400\mathrm{ohm}$. The equivalent conductance of the $0.1\mathrm{M}\mathrm{ }\mathrm{N}\mathrm{a}\mathrm{C}\mathrm{l}$ solution (in $\mathrm{o}\mathrm{h}{\mathrm{m}}^{-1}\mathrm{c}{\mathrm{m}}^2/\mathrm{g}\mathrm{m}\mathrm{e}\mathrm{q}.$) is