Incorporates the combined effects of ionic strength and ion association to show how calculations involving ionic equilibria are carried out. Examines the variability of reduction potential data for two aqueous redox systems. Provides several examples. (MVL)

Emphasizes the role that crystallography plays and has played in building up the body of chemical fact. Shows how the teaching of much of this material is illuminated by reference to crystal structures and crystallochemical relationships in all areas of chemistry. Discusses close packing, silicate structures, and salt hydrates. (CW)

Discusses a revised and extended version of the Mulliken electronegativities. Describes applications and limitations implied by this version. (CW)

Discusses the effects of using carbon dioxide contaminated sodium hydroxide solution as a titrant for a solution of a weak monoprotic acid and the resulting distortion of the titration curve in comparison to one obtained when an uncontaminated titrant is used. (CW)

Discusses a revision and extension of the Mulliken electronegativity scale to consider 50 elements. Describes the calculation of valence-state promotion energies and Mulliken atomic electronegativities and the conversion of Mulliken electronegativities to Pauling units. (CW)

Presents a quantitative treatment of ionization potentials of isoelectronic atoms. By looking at the single-electron view of calculating the total energy of an atom, trends in the screening and effective quantum number parameters are examined. Approaches the question of determining electron affinities. (CW)

Chemistry students selected a main group of the periodic table, researched the group, and then presented a 70-minute lecture on the group; conducted two lecture demonstrations; and performed two laboratory experiments. This was done to determine what descriptive chemistry should be included in a new sophomore-level inorganic chemistry course. (JN)

Suggests polymer topics for study in inorganic chemistry courses. Commercial materials (including list of inorganic compounds utilized in polymer industry), anchored metal catalysis, polymers modified or formed by coordination, polysiloxanes, phosphazene or phosphonitrilic halide polymers, and hetergeneous polymerization catalysts are considered.…

Manufacture, properties, uses, and economic aspects of inorganic chemicals are discussed in an industrial chemistry course. Provided and discussed is a flowchart used in the course. The flowchart is a logical method of presenting the important features of inorganic chemicals and a summarizing their method of manufacture. (JN)

Lecturing hints, periodic table, mechanistic approach to predicting inorganic reaction products for substitution reactions, reaction rates, spectroscopy, and entropy role change in establishing position of equilibrium for vaporization of water and synthesis of ammonia were topics of lectures presented at the Seventh Biennial Conference on Chemical…

The movement to reinstate systematic inorganic reaction (descriptive) chemistry into the curriculum is gaining momentum. Offers suggestions and strategies showing that the change is desirable and easy, even for instructors with little experience with systematic fundamental and industrial inorganic chemistry. (Author/JN)

Described is an experiment involving the synthesis and spectral studies of cobalt complexes that not only give general chemistry students an introduction to inorganic synthesis but allows them to conduct a systematic study on the effect of different ligands on absorption spectra. Background information, procedures, and experimental results are…

Presents calculations that suggest stoichiometric, ionic, and noble gas-metal compounds may be stable. Bases calculations on estimated values of electron affinity, anionic radius for the noble gases and for the Born exponents of resulting crystals. Suggests the desirability of experiments designed to prepare compounds containing anionic,…

Examines the usefulness of cyclic voltammetry to the determination of a complex compound's stoichiometry. Discusses the experimental design, laboratory equipment, and results. (CW)

Discusses the significance of periodicity and covalent atomic radius among the elements. Describes contraction across the row, expansion down the group, irregularities in the buildup of the periodic table and periodicities of physiochemical properties. (CW)