Determine the mass fraction of water of crystallization in barium chloride dihydrate BaCl2 * 2H2O
September 12, 2021
The mass of the crystalline hydrate of barium chloride BaCl2 * 2H2O = m (Ba) + m (Cl) * 2 + m (H2O) * 2 = 137 + 35.5 * 2 + 18 * 2 = 244 grams. 244 grams of barium chloride contains 36 grams of crystalline water, therefore, according to the proportion: 244 grams – 100%, and 36 grams – X. Hence X = 14.75% – so many percent of water of crystallization is contained in barium chloride dihydrate.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.