3. A 3.455-g sample of a mixture was analyzed for barium ion by adding a small excess of sulfuric acid to an aqueous solution of the sample. The resultant reaction produced a precipitate of barium sulfate, which was collected by filtration, washed, dried, and weighed. If 0.2815 g of barium sulfate was obtained, what was the mass percentage of barium in the sample

Explanation:

From the question we are told that:

Mass of mixture

Mass of Barium

Equation of Reaction is given as

Generally the equation for Moles of Barium  is mathematically given by

Since

Therefore

Generally the equation for Mass of Barium  is mathematically given by

Therefore

coral.

explanation:

coral. many marine organisms that produce calcium carbonate shells or skeletons are negatively impacted by increasing co2 levels and decreasing ph in seawater.

the answer is 1 i believe