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 0.365 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 0.365 g. What is the mass percent of Mg(NO3)2 in the original mixture?

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section: Chapter Questions

Problem 104GQ

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