This experiment is designed specifically for students with little knowledge of radical reactions and provides an introduction to the gas-phase chemistry of radicals. Experimental planning based on the student's own observation is an important component of the experiment. (Author/MA)

Presents material dealing with an application of statistical thermodynamics to the diatomic solid I-2(s). The objective is to enhance the student's appreciation of the power of the statistical formulation of thermodynamics. The Simple Einstein Model is used. (Author/MA)

Describes the construction of an inexpensive, highly reliable, milli-degree temperature controller and differential thermometer from an extremely stable thermistor and other readily available materials. Actual construction time is relatively short for both devices. Illustrations are included. (Author/MA)

Unsafe academic chemistry departments are a result of a lack of incentive, ignorance of the hazards, historical perspective, and a lack of funds. A program implemented at Wright State University to overcome these obstacles is described. (BB)

The solvent and chemical properties of liquid ammonia are presented. In a certain sense, ammonia is a more versatile solvent than is water because of its ability to solubilize, without reaction, highly negative or reducing species. (Author/BB)

The historical development of the use of diphosphonates in detergents is presented as well as physical chemistry, physiological response, toxicology, and human clinical trials with these compounds. (BB)

A kit is described for use in automation of routine chemical research procedures. The kit uses sensors to evaluate the state of the system, actuators which modify the adjustable parameters, and an organ of decision which uses the information from the sensors. (BB)

This article establishes a systematic way for the student to enumerate the various possible arrangements for particles distributed among energy levels. (Author/BB)

Conflicting views have been put forward on the derivation of the distribution of solubilized molecules among micelles. This stems from failure to consider the arrangement of the solubilized molecules in the micelles. In the treatment presented enthalpy effects are ignored as they are not amenable to a simple general theory. (Author/BB)

Various ways of calculating the dissociation energies of pi bonds in alkenes are discussed. What seems to be the soundest values derive from isomerization kinetics. (Author/BB)

A computer program is described for identification of chiral centers in molecules. Essential input to the program includes both atomic and bonding information. The program does not require computer graphic input-output. (BB)

This survey concerns itself with the distribution of nonteaching assistance and staff support in chemistry departments and its relationship to the size of the department and the nature of the institution. The survey reports on 55 departments of chemistry of colleges in the State of New York. (BB)

Video cassette demonstrations are useful in teaching experimental techniques and instrumentation. This article describes how the recorded demonstrations save instructor and student time, how they can be integrated into a multimedia teaching format, and how recordings support student independence. (Author/BB)

The construction of a device is described which converts an ordinary horizontal-stage overhead projector into a vertical-stage projector. The parts cost $60 and seven hours of labor are required. (BB)

Two demonstrations are described which are suitable for introductory chemistry classes. The first involves the precipitation of silver, and the second is a demonstration of the relationship between rate constants and equilibrium constants using water and beakers. (BB)