2. Calculate the mass of iron in 100 ml of the analyzed solution based on the results of photometry using the addition method. The optical density of the test solution prepared from 5.00 ml of the analyzed solution is 0.27; the optical density value of the same test solution with the addition of 100 μg Fe, measured under the same conditions, is 0.64.

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