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The strength of the eggshell of birds is determined by the calcium carbonate content of the eggshellI. The percentage calcium carbonate in the eggshell can be determined by gravimetric analysis. A 0.5894-g sample of clean, dry eggshell was completely dissolved in a minimum volume of dilute hydrochloric acid. An excess of a basic solution of ammonium oxalate, (NH4)2C204, was then added to form crystals of calcium oxalate monohydrate, CAC204H2O. The suspension was filtered, and the crystals were then dried to constant mass; 0.6709 g of CaC204H2O was collected. Determine the percentage by mass calcium carbonate in the egg shells. Provide your answer to two places after the decimal and without units.

The strength of the eggshell of birds is determined by the calcium carbonate content of the eggshellI. The percentage calcium carbonate in the eggshell can be determined by gravimetric analysis. A 0.5894-g sample of clean, dry eggshell was completely dissolved in a minimum volume of dilute hydrochloric acid. An excess of a basic solution of ammonium oxalate, (NH4)2C204, was then added to form crystals of calcium oxalate monohydrate, CAC204H2O. The suspension was filtered, and the crystals were then dried to constant mass; 0.6709 g of CaC204H2O was collected. Determine the percentage by mass calcium carbonate in the egg shells. Provide your answer to two places after the decimal and without units.

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
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The strength of the eggshell of birds is determined by the calcium carbonate content of the eggshell. The percentage calcium carbonate in the eggshell can be determined by gravimetric analysis. A 0.5894-g sample of clean, dry eggshell was completely dissolved in a minimum volume of dilute hydrochloric acid. An excess of a basic solution of ammonium oxalate, (NH4)2C204, was then added to form crystals of calcium oxalate monohydrate, CaC204H20. The suspension was filtered, and the crystals were then dried to constant mass; 0.6709 g of CaC204'H2O was collected. Determine the percentage by mass calcium carbonate in the egg shells. Provide your answer to two places after the decimal and without units.
Transcribed Image Text:The strength of the eggshell of birds is determined by the calcium carbonate content of the eggshell. The percentage calcium carbonate in the eggshell can be determined by gravimetric analysis. A 0.5894-g sample of clean, dry eggshell was completely dissolved in a minimum volume of dilute hydrochloric acid. An excess of a basic solution of ammonium oxalate, (NH4)2C204, was then added to form crystals of calcium oxalate monohydrate, CaC204H20. The suspension was filtered, and the crystals were then dried to constant mass; 0.6709 g of CaC204'H2O was collected. Determine the percentage by mass calcium carbonate in the egg shells. Provide your answer to two places after the decimal and without units.
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