Barium chloride was added to 100 g of a 5% solution of sulfuric to-you. Determine the mass of the sediment formed.

1. Let’s compose the reaction equation:

H2SO4 + BaCl2 = HCl + BaSO4.

2. Find the mass of sulfate acid in the solution, and then its amount:

m (H2SO4) = m (solution) * ω (H2SO4) / 100% = 100 g * 5% / 100% = 5 g.

n (H2SO4) = m (H2SO4) / M (H2SO4) = 5 g / 98 g / mol = 0.051 mol.

3. According to the reaction equation, we find the amount of liberated barium sulfate, and then its mass:

n (BaSO4) = n (H2SO4) = 0.051 mol.

m (BaSO4) = n (BaSO4) * M (BaSO4) = 0.051 mol * 233 g / mol = 11.89 g.

Answer: m (BaSO4) = 11.89 g.