29. Solving a chemistry problem

2. During the polarographic analysis of the solution, reagents were added to 2 ml of it and the volume was brought to 50 ml with water. The wave height in the resulting solution turned out to be 30 mm. Then, 1 ml of a standard solution with a concentration of the analyzed component of 10 mg/ml was added to the test solution. The wave height in this case turned out to be 55 mm. Calculate the concentration of the analyzed solution.