Background information, list of materials needed, and procedures used are provided for a demonstration involving the transformation of a hydrophobic liquid to a partially hydrophobic semisolid. Safety considerations are noted. (JN)

Describes demonstrations of the ring strain inherent in cyclopropanes and cyclobutanes and their resultant high reactivity, and selective solubility principles. (MLH)

Describes a lecture demonstration method to illustrate some aspects of the nitration of alkyl benzenes. (SL)

Included are demonstrations on optical activity, and using a digital multimeter. (SL)

Free radical chlorination of methane is used in organic chemistry to introduce free radical/chain reactions. In spite of its common occurrence, demonstrations of the reaction are uncommon. Therefore, such a demonstration is provided, including background information, preparation of reactants/reaction vessel, introduction of reactants, irradiation,…

Described is a demonstration in which the reaction sequence can be easily followed since the reactant, intermediates, and the final product have intense and different colors. Materials and procedures for this demonstration are discussed. (CW)

Background information and procedures are provided for an experiment to prepare three metal derivatives of dimethyl sulfoxide (DMSO) and to determine some structural features of these derivatives based on their infrared spectra. Results and discussion of reactions involved are also provided. (JN)

Provides procedures for demonstrations: (1) the ferrioxalate actinometer, which demonstrates a photochemical reaction; and (2) the silver mirror, which demonstrates the reduction of a metal salt to the metal and/or the reducing power of sugars. (CS)