98. Solving a chemistry problem

Using data on the properties of solutions of substance A in water:
1) plot the dependence of the specific and equivalent electrical conductivity of solutions of substance A on dilution V;
2) check whether the solutions of substance A in water obey the Ostwald dilution law;
3) Calculate for substance A, according to the dependence of equivalent electrical conductivity on concentration, the equivalent electrical conductivity at infinite dilution and compare the result with the reference data.
Substance A: HCN T=298 K
s, mol/l 0.1 0.05 0.03 0.01 0.005 0.003 0.001
r, Ohm • m 3.10•103 4.37•103 5.84•103 10.1•103 14.3•103 18.3•103 31.9•103