The concentration of Ca in a 200.0 mL sample was determined by precipitating the cation as CaC2O4. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 26.6002 g. The mass of the crucible and CaO (56.077 g/mol) was 26.7134 g. Determine the concentration of Ca (40.078 g/mol) in the sample in unit of grams per 100 mL.
The concentration of Ca in a 200.0 mL sample was determined by precipitating the cation as CaC2O4. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 26.6002 g. The mass of the crucible and CaO (56.077 g/mol) was 26.7134 g. Determine the concentration of Ca (40.078 g/mol) in the sample in unit of grams per 100 mL.
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 71QAP: Calcium in blood or urine can be determined by precipitation as calcium oxalate, CaC2O4. The...
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The concentration of Ca in a 200.0 mL sample was determined by
precipitating the cation as CaC2O4. The precipitate was filtered, washed, and
ignited in a crucible with an empty mass of 26.6002 g. The mass of the
crucible and CaO (56.077 g/mol) was 26.7134 g. Determine the concentration
of Ca (40.078 g/mol) in the sample in unit of grams per 100 mL.
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