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

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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