the microscale loboratory Acknowledgment
The authors are grateful to Hung Ngo and Eleanor Quinio for data on the use of this glassware in class.
Micropycnometers for Density Determination Julle Ellefson-Kuehn C. Jayne Wilcox
William Rainey Harper College Palatine, IL 60067
A recent article by Singh, Szafran, and Pike in this column [199S, 70, A36, A381 described the construction of a micmpycnometer fmm a Pasteur pipet and its use in determining the densities of different organic liquids and % (wlv) solutions of inorganic salts. We used this procedure recentlv in our general chemistry laboratories and have the follbwing comments. We found that the mauh of alcohol formula weight versus density is not li
