436. After dissolving a 1.257 g sample of steel, the chromium contained in the sample was converted into potassium dichromate K2Cr2O7. 35.00 ml of Mohr's salt solution were added to the resulting solution, the excess of Mohr's salt was titrated with 16.15 ml of KMnO4 solution with a mass concentration of 1.500*10-3 g/ml. Calculate the mass fraction of chromium in the original sample of steel if 25.00 ml of Mohr's salt solution are equivalent to 24.15 ml of KMnO4 solution.

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 :)