The calcium in a 300.0 ml sample of natural water was determined by precipitating the cation as CaC204. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 26.9021 g. The mass of the crucible plus Cao (56.077 g/mol) was 27.1346 g. A) What is the mass of the weighing form? B) Calculate the concentration of Ca (40.078 g/mol) in the water in units of grams per 100 ml A 27.1346 g Cao B 0.2325 g Cao 27.1346 g Cac204 D 0.2325 g CaC204 0.05539 g Ca/100 ml 5.54x104g Ca/100 mL G 0.1662 g Ca/100 ml H) 0.01662 g Ca/100 ml

The calcium in a 300.0 ml sample of natural water was determined by precipitating the cation as CaC204. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 26.9021 g. The mass of the crucible plus Cao (56.077 g/mol) was 27.1346 g. A) What is the mass of the weighing form? B) Calculate the concentration of Ca (40.078 g/mol) in the water in units of grams per 100 ml A 27.1346 g Cao B 0.2325 g Cao 27.1346 g Cac204 D 0.2325 g CaC204 0.05539 g Ca/100 ml 5.54x104g Ca/100 mL G 0.1662 g Ca/100 ml H) 0.01662 g Ca/100 ml

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The reaction of sulfuric acid with sodium hydroxide is described by the equation: H₂SO4 + 2NaOH → Na₂SO4 + 2H₂O Suppose 50 mL of NaOH with an unknown concentration is placed in a flask, then a few drops of bromthymol blue were added. A solution of 0.20 M H₂SO4 is dripped into the NaOH solution. After exactly 25.0 mL of H₂SO4 is added, the color changes from blue to yellow. The Titrant in this experiment is
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