Presents short articles on: Le Chatelier's principle, the Lennard-Jones potential, chemical oscillations, solvent extraction efficiency, and nuclear magnetic resolution spectroscopy. (MLH)

Presents three reports: a description for an upper-level course in protein chemistry; a technique for generating many unique unknowns for the determination of molecular weight by viscosity; and an analogy for quantization of energy levels in which molecules are considered as books in a library. (CS)

Five brief items are discussed. They include (1) preservation of reactive ions in solid solution, (2) the molecular partition function, (3) purification of methoxychlor, (4) a kinetics experiment, and (5) determining molecular weights of acids. (RWH)

Presents three brief articles that consider the recovery of silver from film, field trips as a supplement to science major general chemistry laboratory, and the construction of a low-cost colorimeter. (MLH)

Presents short articles on computer-generated exams, paper chromatography of carbohydrates, and the use of innovative teaching methods in non-traditional courses. (MLH)

Presents three activities: (1) the investigation of the purity and stability of nicotinamide and flavin coenzymes; (2) desk-computer fitting of a two-exponential function; and (3) an interesting and inexpensive solubility product experiment for introductory chemistry. (RH)

Presents four simple laboratory procedures for: preparation of organometallic compounds, a realistic qualitative organic analysis project, a computer program to plot potentiometric titration curves, and preparation of stereoscopic transparencies. (SL)