36. Solving a chemistry problem

95. During polarography of a cadmium salt solution against the background of a 0.2 M potassium chloride solution, the following data were obtained: the limiting diffusion current is 90 μA, the strength of the diffusion current corresponding to the potentials of the ascending part of the polarogram is 2 μA at E \u003d -0.55 V and 88 µA at E = -0.65 V. Calculate, using the polarographic wave equation, the half-wave potential and the number of electrons involved in the process.