The mass of the precipitate formed as a result of the interaction of 5.2 g of barium chloride with an acid solution in excess is …

Given:
m (BaCl2) = 5.2 g
To find:
m (BaSO4)
Decision:
BaCl2 + H2SO4 = BaSO4 + 2HCl
n (BaCl2) = m / M = 5.2 g / 208 g / mol = 0.025 mol
n (BaCl2): n (BaSO4) = 1: 1
n (BaSO4) = 0.025 mol
m (BaSO4) = n * M = 0.025 mol * 233 g / mol = 5.825 g
Answer: 5.825 g



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.