(Topic: Gravimetry multi-component analysis) The calcium and magnesium in a urine sample were precipitated as oxalates. A mixed precipitate of calcium oxalate and magnesium oxalate resulted and was analyzed by a thermogravimetric procedure. The precipitate mixture was heated to form calcium carbonate and magnesium oxide. This second mixture weighed 0.2504 g. After ignition to form calcium oxide and magnesium oxide, the resulting solid weighed 0.1563 g. What was the mass % of Ca in the mixed oxalate precipitate?
(Topic: Gravimetry multi-component analysis) The calcium and magnesium in a urine sample were precipitated as oxalates. A mixed precipitate of calcium oxalate and magnesium oxalate resulted and was analyzed by a thermogravimetric procedure. The precipitate mixture was heated to form calcium carbonate and magnesium oxide. This second mixture weighed 0.2504 g. After ignition to form calcium oxide and magnesium oxide, the resulting solid weighed 0.1563 g. What was the mass % of Ca in the mixed oxalate precipitate?
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter10: Quantity Relationships In Chemical Reactions
Section: Chapter Questions
Problem 87E: A student was given a 1.6240-g sample of a mixture of sodium nitrate and sodium chloride and was...
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(Topic: Gravimetry multi-component analysis)
The calcium and magnesium in a urine sample were precipitated as oxalates. A mixed precipitate of calcium oxalate and magnesium oxalate resulted and was analyzed by a thermogravimetric procedure. The precipitate mixture was heated to form calcium carbonate and magnesium oxide. This second mixture weighed 0.2504 g. After ignition to form calcium oxide and magnesium oxide, the resulting solid weighed 0.1563 g. What was the mass % of Ca in the mixed oxalate precipitate?
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