142. Solving a chemistry problem

9.19. Calculate the e´-potential taking into account the surface conductivity at the interface of the quartz diaphragm sodium chloride solution and plot the dependence of C on the electrolyte concentration according to the following data:
C * 10–3, mol / m3 0.1 0.2 0.3 0.45 0.7
Xv * 10 ^ 2, Ohm – 1 * m – 1 2 3 3.5 3.7 4
v * 10 ^ 9, m3 / s 5.1 3.1 1.1 0.7 0.2
e is 81; n = 1 * 10-3 Pa * s; a = 2.0; I = 4.0 * 10-3 A.