49. Решение задачи по химии №2

5. To titrate a sample weighing 0.5 g of K2CrO7, 12.6 cm3 of FeSO4 solution C1/z=0.15 mol/dm3 was required. Determine the mass fraction of the main substance and impurities in the sample.

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 :)