Freezing point of Lauric acid: 43.5oC Freezing point of Lauric acid containing an unknown solute: 41.2oC The freezing point depression constant for Lauric acid: 3.9oC/molal The molality of the unknown solute is closest to: A. 0.6m B. 1.6m C. 1.7m D. 0.3m E. 2.3m F. 3.9m G. zero
Freezing point of Lauric acid: 43.5oC Freezing point of Lauric acid containing an unknown solute: 41.2oC The freezing point depression constant for Lauric acid: 3.9oC/molal The molality of the unknown solute is closest to: A. 0.6m B. 1.6m C. 1.7m D. 0.3m E. 2.3m F. 3.9m G. zero
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter10: Solutions
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Problem 30QAP: Air contains 78% nitrogen. At 25C, Henry's law constant for nitrogen is 6.8104M/atm, while at 37C,...
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4. A student obtained the following data:
Freezing point of Lauric acid: 43.5oC
Freezing point of Lauric acid containing an unknown solute: 41.2oC
The freezing point depression constant for Lauric acid: 3.9oC/molal
The molality of the unknown solute is closest to:
A. 0.6m B. 1.6m C. 1.7m D. 0.3m E. 2.3m F. 3.9m G. zero
5. Given the following data:
Flask A with 50cm2 surface area contains 100mL of water at 25oC;
Flask B with 20cm2 surface area contains 10mL of water at 55oC.
In which flask does the water have a lower vapor pressure?
A. flask A
B. flask B
C. both flasks have the same vapor pressure
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