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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 0.365 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 by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter19: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 14E: A 2.5624-g sample of a pure solid alkali metal chloride is dissolved in water and treated with...
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Question 10 of 10 Submit 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? 1 2 4 6. C 7 8 +/- x 10 0 Tap here or pull up for additional resources 3. LO
Transcribed Image Text:Question 10 of 10 Submit 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? 1 2 4 6. C 7 8 +/- x 10 0 Tap here or pull up for additional resources 3. LO
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