A 2.950×10−2 M solution of glycerol (C3H8O3) in water is at 20.0∘C. The sample was created by dissolving a sample of C3H8O3 in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 998.7 mL . The density of water at 20.0∘C is 0.9982 g/mL. a).Calculate the molality of the glycerol solution. Express your answer to four significant figures and include the appropriate units. b). Calculate the mole fraction of glycerol in this solution. Express the mole fraction to four significant figures. c). Calculate the concentration of the glycerol solution in percent by mass. Express your answer to four significant figures and include the appropriate units. d). Calculate the concentration of the glycerol solution in parts per million. Express your answer as an integer to four significant figures and include the appropriate units.
A 2.950×10−2 M solution of glycerol (C3H8O3) in water is at 20.0∘C. The sample was created by dissolving a sample of C3H8O3 in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 998.7 mL . The density of water at 20.0∘C is 0.9982 g/mL. a).Calculate the molality of the glycerol solution. Express your answer to four significant figures and include the appropriate units. b). Calculate the mole fraction of glycerol in this solution. Express the mole fraction to four significant figures. c). Calculate the concentration of the glycerol solution in percent by mass. Express your answer to four significant figures and include the appropriate units. d). Calculate the concentration of the glycerol solution in parts per million. Express your answer as an integer to four significant figures and include the appropriate units.
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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A 2.950×10−2 M solution of glycerol (C3H8O3) in water is at 20.0∘C. The sample was created by dissolving a sample of C3H8O3 in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 998.7 mL . The density of water at 20.0∘C is 0.9982 g/mL.
a).Calculate the molality of the glycerol solution.
Express your answer to four significant figures and include the appropriate units.
b). Calculate the mole fraction of glycerol in this solution.
Express the mole fraction to four significant figures.
c). Calculate the concentration of the glycerol solution in percent by mass.
Express your answer to four significant figures and include the appropriate units.
d). Calculate the concentration of the glycerol solution in parts per million.
Express your answer as an integer to four significant figures and include the appropriate units.
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