4pts) 2.80g of a mixture of Barium Nitrate, Ba(NO3)2 (MM = 261.35 g/mol) and Potassium Bromide, KBr (MM 119.01 g/mol) was dissolved in 200 mL of hot H₂0. Enough Ammonium Phosphate, (NH4)3PO4 (MM = 149.12 g/mol), was added to the solution to precipitate ALL the Barium as Barium Phosphate, Ba3(PO4)2 (s) (MM = 601.93 g/mol). The precipitate was filtered, dried, and weighed to a constant mass of 1.83g. Determine the percentage by mass of Potassium Bromide, KBr in the original mixture.
4pts) 2.80g of a mixture of Barium Nitrate, Ba(NO3)2 (MM = 261.35 g/mol) and Potassium Bromide, KBr (MM 119.01 g/mol) was dissolved in 200 mL of hot H₂0. Enough Ammonium Phosphate, (NH4)3PO4 (MM = 149.12 g/mol), was added to the solution to precipitate ALL the Barium as Barium Phosphate, Ba3(PO4)2 (s) (MM = 601.93 g/mol). The precipitate was filtered, dried, and weighed to a constant mass of 1.83g. Determine the percentage by mass of Potassium Bromide, KBr in the original mixture.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter20: Environmental Chemistry-earth's Environment, Energy, And Sustainability
Section20.7: Green Chemistry And Sustainability
Problem 2.1ACP: Assume that a sample of hard water contains 50. mg/L of Mg2+ and 150 mg/L of Ca2+, with HCO3 as the...
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