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A mixture contains Mg(NO3)2 and KBr. A 1.85 g sample of this mixture is dissolved in water and an excess of NaOH is added, producing a precipitate of Mg(OH)₂. The precipitate is filtered, dried, and weighed. The mass of the precipitate is 0.335 g. What is the mass percent of Mg(NO3)2 in the original mixture?

A mixture contains Mg(NO3)2 and KBr. A 1.85 g sample of this mixture is dissolved in water and an excess of NaOH is added, producing a precipitate of Mg(OH)₂. The precipitate is filtered, dried, and weighed. The mass of the precipitate is 0.335 g. What is the mass percent of Mg(NO3)2 in the original mixture?

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter4: Reactions In Aqueous Solution
Section: Chapter Questions
Problem 77QAP: A 300.0-g sample of a solid is made up of a uniform mixture of NaNO3, MgCl2, and BaCl2. A 100.0-g...
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A mixture contains Mg(NO3)2 and KBr. A 1.85 g sample of this mixture is dissolved in water and an excess of NaOH is added, producing a precipitate of Mg(OH)₂. The precipitate is filtered, dried, and weighed. The mass of the precipitate is 0.335 g. What is the mass percent of Mg(NO3)2 in the original mixture?
Transcribed Image Text:A mixture contains Mg(NO3)2 and KBr. A 1.85 g sample of this mixture is dissolved in water and an excess of NaOH is added, producing a precipitate of Mg(OH)₂. The precipitate is filtered, dried, and weighed. The mass of the precipitate is 0.335 g. What is the mass percent of Mg(NO3)2 in the original mixture?
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