Discusses advances made in chemical analysis instrumentation used in environmental monitoring. This first of two articles is concerned with analytical instrumentation in which detection and dispersion depend ultimately on the properties of gaseous molecules. (JR)

Suggests two uses for the programmable calculator in the freshman chemistry laboratory: as a means of determining whether or not a student's raw data from a laboratory experiment fall within acceptable tolerance limits; and as a means of checking the reliability of unknowns and grading on quantitative experiments. (MLH)

Describes a "feedback course" offered at Brown University, in which undergraduates redesigned the introductory organic chemistry laboratory. The students specified objectives for the ideal lab, then devised laboratory experiments. Laboratory safety was stressed, all dangerous reagents and solvents were eliminated, and toxicological data were…

Discusses some of the most important structural features found in modern chemical laboratories, including building shapes, floor plans, and window utilization. (MLH)

Discusses an experiment in freer language laboratory use in which oral communication was elicited with the help of illustrations, vocabulary, and a model. (Text is in French.) (AM)

Describes an experiment wherein the student can demonstrate the existence of all the thiocyanato chromium complexes, estimate the stepwise formation constants, demonstrate the robustness of chromium III complexes, and show the principles of paper electrophoresis. (GS)

Describes an experiment that will acquaint the student with the ion-exchange model, yield data which fit nicely to a computer type analysis, introduce the preparation of electrodes, provide a unique experience with elevated temperatures and ionic solvents, and provide experience in electrometric measurements. (GS)

Suggests current scientific literature published in journals of biological research as a source of new, interesting, and enlightened experiments to reinforce an understanding of the process and sense of science. Presents an exercise developed using current literature. (EB)

Describes an investigation involving acid hydrolysis and using both volumetric and kinetic techniques. Presents examples of the determination of the rate constant and its variation with temperature. (GS)