Presents a detailed discussion of the chemistry of cleaning. Topics discussed include: the theory of detergency, soaps, synthetic surfactants, and detergents. (BT)

Reports the first year's activities of the High School Chemistry Committee (HSCC) formed by the American Chemical Society to actively involve high school chemistry teachers within the society and the chemical education community. Goals, objectives, and current activities are presented. (BT)

Describes a programed, independent study, college level, general chemistry course designed to develop good technical laboratory skills with no attempt made to relate laboratory experiments and classroom topics. A list of experiments used and a sample laboratory examination are included. (BT)

Describes an experiment, designed for and tested in an advanced inorganic laboratory methods course for college seniors and graduate students, that prepares and analyzes several samples in the nearly ideal potassium perchlorate-permanganate solid solution series. The results are accounted for by a theoretical treatment based upon aqueous…

Describes an experiment that, using a commercially available solid-state selective electrode in conjunction with a pH-meter, determines the stability constants of sodium sulfate while varying the ionic strength of the media using sodium chloride. Detailed reproducible procedures of both the measurements and calculations are described. (BT)

Describes an experiment, designed for use in the undergraduate laboratory, that measures the bond energies of molecules using a small commercial mass spectrometer and low-cost digital voltmeters. (BT)

Describes a laboratory technique for use in an undergraduate instrumental analysis course that, using the interpretation of window diagrams, prepares a mixed liquid phase column for gas-liquid chromatography. A detailed procedure is provided. (BT)

Describes a spot test experiment, designed for use in the undergraduate laboratory, that has been adopted to follow the progress of coupling reactions. (BT)

Describes six laboratory procedures for preparing polymers which have been used in a course for undergraduate industrial arts students, who have a concentration in plastics technology but have not taken more than one year of college chemistry. (BT)

Presents selected position papers and research papers influenced by the work of Jean Piaget, intended to help science educators understand Piaget's work and how it applies to science education. Emphasis on formal reasoning stage of development. (SA)

Reviews state-of-the-art of conformational analysis and factors which affect it. Emphasizes sp-3 hybridized acrylic molecules. Provides examples on the importance of certain factors in determining conformation. Purpose, is to provide examples for examination questions. (Author/SA)

Reviews published material on conformational behavior in 1,2-disubstituted frameworks regulated by steric and polar factors and attractive and repulsive gauche effects. Reports on attraction in systems with small and strongly electronegative atoms. Suggests that cause is dominant nuclear-electron attraction between atoms or groups. (Author/SA)

The uses of isoenzyme assays are reviewed as they relate to solutions of practical problems. Emphasizes their use of diagnostic tools in medicine, specifically in cardiac profiling. Suggests that principles of isoenzyme assays readily demonstrate molecular structure, acid-base equilibria, kinetics, and electrochemistry to general chemistry…

Summarizes a theoretical approach using nonbonding MO's and perturbation theory to correlate properties of saturated hydrocarbons. Discussion is limited to correctly predicted using this method. Suggests calculations can be carried out quickly in organic chemistry. (Author/SA)

Discusses concept of covalent bonding as related to homonuclear diatomic molecules. Article draws attention to the existence of bound rare gas and alkaline earth diatomic molecules. Summarizes their molecular parameters and offers spectroscopic data. Strength and variation with distance of interatomic attractive forces is given. (Author/SA)