Chemistry & Chemical Reactivity
9th Edition
ISBN: 9781133949640
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Textbook Question
Chapter L, Problem 53GQ
At 25 °C, the density of water is 0.997 g/cm3, whereas the density of ice at — 10 °C is 0.917 g/cm3.
(a) If a soft-drink can (volume = 250. mL) is filled completely with pure water at 25 °C and then frozen at - 10 °C, what volume does the ice occupy?
(b) Can the ice be contained within the can?
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1.) In the Dumas method for determining the molar mass of an unknown volatile liquid, a sample of a volatile liquid that boils below 100 oC is vaporized in a boiling water bath and the mass of the vapor required to fill the flask is determined. The following data was collected:
Flask Volume
100.0 +100.0 + 79.6 mL = 279.6 mL
Mass of Flask + Cap
143.85 g
Mass of Flask + Condensed Liquid
144.95 g
Mass of Condensed Liquid
1.10 g
Temperature of Water Bath (oC)
84.1 oC
Barometric Pressure (atm)
0.985 atm
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Chapter L Solutions
Chemistry & Chemical Reactivity
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