Discusses a criterion for determining when to use the simplifying assumption that the amount of weak acid or base dissociated is negligible compared with the total concentration. (MLH)

Describes an experiment that follows the progress of a chemical reaction with radiochemical tracer techniques, using the beta-emitting radioisotope iodine 131. (MLH)

Describes an experiment that utilizes a potentiometric, redox titration in N, N-dimethylformamide. (MLH)

Describes the use of integrated circuit voltage regulators in electrolytic titration instruments. (MLH)

Discusses a theoretical model that uses a game as a base for studying processes of a stochastic nature, which involve chemical reactions, molecular systems, biological processes, cells, or people in a population. (MLH)

Presents an interview with Linus Pauling in which he recounts some of his experiences in chemistry. (MLH)

Demonstrates the novelty and variety of the structue relationships in a class of cage molecules similar to cubane; syntheses for these substances are shown. (MLH)

Presents designs for atomic models for building small cyclic molecules and demonstrates their use in the construction of beta-lactam antibiotic structures. (MLH)

Discusses the problems of devising chemical names that permit the construction of a structural representation from a substance name. (MLH)

Presents questions and answers pertaining to yeast fermentation, oxygen content of the air, nutritional requirements of hot water bacteria, the hydrolysis of acetyl coenzyme A, and the stratified distribution of life in the Black Sea. (MLH)

Discusses the designs for an inexpensive table for analytical balances, a safety pipet for reagents, and permanent models for determining absolute configurations. (MLH)

Discusses new ways to introduce the basic chemical principles into an introductory level chemistry course. (MLH)

Discusses a chemistry course, taught by the Keller Plan, that includes only students who have received a D or F in a previous chemistry course. (MLH)

Presents a computational method based on a Monte Carlo generation of a large number of chemical reactions. The reactions are allowed to proceed on the basis of relative probabilities. (MLH)

Presents a simple demonstration of optical activity and a simple method to show crystalline growth. (MLH)