The calcium (40.078 g/mol) in a 500.0 mL sample of natural water was determined by precipitating the cation as CaC2O4. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 32.3555 g. The mass of the crucible plus CaO (56.077 g/moI) was 33.1471 g. A. Calculate the concentration of Ca in water in units of grams per 100 mL of the water. B. What is the molarity of Ca in the water sample?
The calcium (40.078 g/mol) in a 500.0 mL sample of natural water was determined by precipitating the cation as CaC2O4. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 32.3555 g. The mass of the crucible plus CaO (56.077 g/moI) was 33.1471 g. A. Calculate the concentration of Ca in water in units of grams per 100 mL of the water. B. What is the molarity of Ca in the water sample?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The calcium (40.078 g/mol) in a 500.0 mL sample of natural water was determined by precipitating the cation as CaC2O4. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 32.3555 g. The mass of the crucible plus CaO (56.077 g/moI) was 33.1471 g.
A. Calculate the concentration of Ca in water in units of grams per 100 mL of the water.
B. What is the molarity of Ca in the water sample?
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