138. Задачка по химии №013 834
96.0.0921 g of chromic anhydride was dissolved, treated with KI, and the released iodine was titrated with 23.75 cm3 of a Na2S2O3 solution with T Na2S2O3 = 0.01354 g / cm3. What percentage of CrO3 is in the sample?
Оплата и выдача товара осуществляются через партнёрскую платформу.