139. Solving a chemistry problem

At 298K, the specific electrical conductivity of 0.001 M phenol solution (C6H5OH) æ = 1.25 · 10−7 Ohm − 1 · cm − 1. Define:
a) molar electrical conductivity of the electrolyte λ (cm2 / Ohm · mol · equiv), dissociation constant Kd, degree of dissociation α;
b) the concentration at which the degree of dissociation will be equal to 10%, and the pH of the solution;
Calculate the conductivity at infinite dilution using the reference data in the appendix.