A 250.0-gram sample of a white solid is known to be a mixture of BaCl2, KNO3, and NaCl. When 100.0 g of this mixture is dissolved in the water and allowed to react with excess H2SO4, 67.3 g of a white precipitate is collected and when the remaining 150.0 g of the mixture is dissolved in the water and allowed to react with excess AgNO3, 197.6 g of a second precipitate is collected.
1. Determine the formulas of the two precipitates?
2. Find out the mass of each substance in the original 250g mixture?