A solution of barium chloride was added to 50 ml of a sulfuric acid solution with a moss fraction of 12%

A solution of barium chloride was added to 50 ml of a sulfuric acid solution with a moss fraction of 12% and a density of 1.08 g / ml. Determine the mass of the precipitated sediment.

Barium chloride reacts with sulfuric acid. At the same time, a water-insoluble barium sulfate salt is synthesized, which precipitates. The reaction is described by the following chemical reaction equation.

BaCl2 + H2SO4 = BaSO4 + 2HCl;

Barium chloride reacts with sulfuric acid in equal molar amounts. In this case, an equal amount of insoluble salt is synthesized.

Let’s calculate the chemical amount of sulfuric acid.

M H2SO4 = 2 + 32 + 16 x 4 = 98 grams / mol; N H2SO4 = 50 x 1.08 x 0.12 / 98 = 0.066 mol;

The same amount of barium sulfate will be synthesized.

Let’s calculate its weight.

M BaSO4 = 137 + 32 + 16 x 4 = 233 grams / mol; m BaSO4 = 0.066 x 233 = 15.378 grams;