Presents questions and possible answers involving fundamental chemical ideas related to systems within organisms and the environment. (SLH)

Describes a chemiluminescence system which can be used to demonstrate the effects of certain factors which affect the rate of reaction (temperature, concentration, catalysis, solvent, etc.), and to perform experiments relevant to the mechanism of the system. (SLH)

Describes an experiment designed to familiarize students with the operation of a precision spectrophotometer, the effects of changes in operating variables, and the characteristics of such components as sources and detectors. (SLH)

Describes an undergraduate laboratory project involving lecithin which integrates two general aspects of lipid methodology: chromatographic techniques and use of enzymes specificity to obtain structural information. (Author/SLH)

Describes an audiovisual instructional program for general chemistry and its evaluation based upon laboratory grades, quiz grades, and course final grades. Found that students who used the materials attained a significantly higher level of achievement. (SLH)

Describes a series of experiments designed for general chemistry in which the students prepare metal complexes which are then used as samples for spectral study. (SLH)

Describes four experiments designed to introduce students to the methodology associated with the construction, evaluation, and use of ion-selective electrodes. (SLH)

Describes a technique of quantitative analysis based on measuring the temperature change accompanying a quantitative reaction in solution. Can be used for delta-H measurements and quantitative determinations by comparison of data obtained for an unknown with that obtained for a series of standards. (SLH)

Describes the application of a computer program designed to produce a formula determination simultaneously accounting for both elemental composition and probable isotopic species for a measured ion mass. (SLH)

Describes an experiment which can be used to test for the use of accelerants in the origin of a fire. Involves distillation and gas liquid chromatography to identify the accelerants, thus combining two experiments ordinarily included in the beginning organic laboratory. (SLH)

Describes a procedure for freeing an element from either a mineral or organic matrix with the use of a radioactive tracer to determine recovery of the elements. (SLH)

Describes a method for the accurate determination of partial specific volume of a protein. Method is simple enough to include in the undergraduate physical chemistry laboratory but requires patience and careful handling which provide good training in laboratory techniques. (SLH)

Presents a multipart experiment utilizing the same two compounds in preparation, interpretation of infrared spectra, and kinetic study. Several extensions of the experiment are included. (SLH)