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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

Fan Zhang

Xi''an Dolphin Electric Technology Co. Ltd, Xi''an, Shaanxi, China 710068

Na An

College of Life Science, Snaanxi Normal University, Xi''an, Shaanxi, China, 710062

J. Chem. Educ., 2004, 81 (6), p 850

DOI: 10.1021/ed081p850

Publication Date (Web): June 1, 2004

Section:

History, Education, and Documentation

Abstract

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%.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Physical Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Solutions / Solvents

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