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In the Laboratory
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A Multipurpose Apparatus To Measure Viscosity and Surface Tension of Solutions. The Measurement of the Molecular Cross-Sectional Area of n-Propanol.
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Xin Zhang, Shouxin Liu, and Baoxin Li
College of Chemistry and Material Science, Shaanxi Normal University, Xi'an, Shaanxi, China, 710062
Na An
College of Life Science, Snaanxi Normal University, Xi'an, Shaanxi, China, 710062
Fan Zhang
Xi'an Dolphin Electric Technology Co. Ltd, Xi'an, Shaanxi, China 710068
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June 2004
Vol. 81 No. 6
p. 850
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| Abstract |
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A multipurpose apparatus is described that can be used to measure the viscosity of a solution by the Ostwald method and the surface tension by either the capillary-rise or the drop-weight method. The apparatus allows for measurement of a set of solutions (obtained by dilution of initial concentration) without reloading each solution. The apparatus can also be used to measure the properties of a solution that exibits surface foaming. The deviation of measured values by the apparatus is less than 3.5%.
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| Supplement |
The construction and the method of operation of the apparatus, the essential theory, the data and tables of the two educational experiments are available.
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 Contents |
JCE2004p0850W.doc (Microsoft Word)
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| Download |
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| More Information |
Citation |
Zhang, Xin; Liou, Shouxin; Li, Baoxin; An, Na; Zhang, Fan. J. Chem. Educ. 2004 81 850.
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Keywords |
Laboratory Equipment / Apparatus; Laboratory Instruction; Liquids; Physical Chemistry; Solutions / Solvents
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History |
Created:
Last Updated: |
May 2, 2004
January 21, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
2004
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June
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850
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