4. Calculate the concentration of the solution (mg/ml) containing Fe3 if acetone, ammonium thiocyanate and water were added to 1 ml of the analyzed solution to make 100 ml. Photometry was carried out in a cuvette with l=2 cm at 480 nm. The optical density of the solution was 0.75, the molar absorption coefficient under these conditions was 14000.

If you cannot open the file or have any problems, do not rush to leave a negative review! Contact me and I will quickly help you solve the problem. After purchasing, please leave a positive review of the product :)