31. Solving a chemistry problem

31. Solving a chemistry problem

2. A Pb2 solution of unknown concentration gives a diffusion current of 5.2 μA. To 100 ml of this solution, 50 ml of 0.004 M Pb2 solution was added and the polarogram was recorded again. In this case, the diffusion current was 15 μA. Calculate the concentration of lead in the original solution.

Additional information:

If the file does not open for you, install the Rar archiver program. Inside the archive, the solution is in WORD format.