Discussed is the preparation of synthetic brochantite from solution and a thermogravimetric-differential thermal analysis study of the thermal decomposition of this compound. Other analyses included are chemical analysis and IR spectroscopy. Experimental procedures and results are presented. (CW)

Outlined is a method for collecting and cutting oriented samples for microstructural analysis including handling the samples in the laboratory, cutting and orienting chips parallel to the motion plane, and cutting and orienting chips normal to Le and foliation. (CW)

Academia and industry both have an interest in the economic aspects of drug development, including the rising cost of new drug discovery, the decrease in the effective patent life of new drugs as the drug improvement process lengthens, and the impact of drug-related litigation. (MLW)

Describes a student project which requires limited knowledge of Fortran and only minimal computing resources. The results illustrate such important principles of quantum mechanics as the variation theorem and the virial theorem. Presents sample calculations and the subprogram for energy calculations. (GS)

Describes a computer program that teaches the concept of spatial distributions of atoms in a molecule and another program that simulates the kinetic progress of a chemical reaction. (MLH)

Describes a laboratory experiment in which the students prepare an antichap lipstick from basic ingredients and demonstrate solubility relationships between these ingredients and water. (MLH)

Explains using the linear combination of bonding orbitals methods; why two different diagrams are used to represent the molecules when the properties of homonuclear diatomic molecules are being discussed. (GA)

Objects to the idea of treating molecular particles, such as molecules and atoms, as equal in kind to substances when discussing chemical reactions, thus confusing their different roles in the theory of matter. (GA)

Reviews two component systems forming so-called inclusion compounds. (SL)

Reviews the study of molecular shapes and structures. (SL)

Reviews the topic of atomic, molecular, and ionic size. (SL)

Describes a beginning level undergraduate chemistry course designed to introduce students to the fundamental concepts of delocalized and localized molecular orbitals. (SL)

Completes a report from a previous article by presenting the important manufacture and uses of industrial chemicals. Gives structural formulas and percentages of each major use as well as the typical method of manufacture. (CW)

Advocates the teaching of quantum chemical ideas to undergraduates. Discusses the total failure of the electronegativity approach and comparison with other theoretical approaches. (CW)