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Shannon, Dan C. – Science Teacher, 1984
Discusses a laboratory exercise (suitable for the day before spring vacation) involving use of a hard-boiled egg to stimulate student responses to questions on the effect of adding salt to the water, formation of iron sulfide, ease of peeling, and gas laws. Additional experiments are included. (BC)
Descriptors: Chemical Reactions, Chemistry, Laboratory Procedures, Science Experiments

Bailey, William J.; Griffith, James R. – Journal of Chemical Education, 1978
The method involves the dissolution of a small piece of metallic lithium in a small quantity of tertiary alcohol followed by addition to a mixture of the isocyanate and the tertiary alcohol in ether. This should be useful in organic chemistry laboratory courses for the identification of tertiary alcohols. (Author/BB)
Descriptors: Chemical Reactions, Chemistry, Higher Education, Laboratory Procedures

Broos, Rene; And Others – Journal of Chemical Education, 1978
The preparation of "p"-carboxystyrene from carboxybenzyl bromide in aqueous media is described. This is an example of a Wittig procedure that can be performed by students in one afternoon. (BB)
Descriptors: Chemical Reactions, Chemistry, Higher Education, Laboratory Procedures

Cleland, George H. – Journal of Chemical Education, 1978
The Meerwein reaction is often omitted from undergraduate organic chemistry laboratory books. This experiment, the preparation of "o"-chlorocinnamic acid from "o"-chloroanaline, illustrates this section. (BB)
Descriptors: Chemical Reactions, Chemistry, Higher Education, Laboratory Procedures

Shama, Sami A.; Tran, Thuan L. – Journal of Chemical Education, 1978
This safe and efficient procedure for the synthesis of N-substituted amides and hydrazides is a modification of the Schotten-Bausmann procedure in which the amine or hydrazide is replaced by the corresponding hydrochloride salt, and the use of alkali is eliminated. (Author/BB)
Descriptors: Chemical Reactions, Chemistry, Higher Education, Laboratory Procedures

Cormier, Russell A.; Hoban, James N. – Journal of Chemical Education, 1984
Provides background information and procedures for the multi-step synthesis of tiger moth and boll weevil pheromones (sex attractants). These syntheses require several laboratory periods. The tiger moth pheromone synthesis is suitable for introductory organic chemistry while the boll weevil pheromone is recommended for an advanced laboratory…
Descriptors: Chemical Reactions, College Science, Entomology, Higher Education

Langley, Richard H.; And Others – Journal of Chemical Education, 1984
Describes a senior-level experiment dealing with the synthesis and characterization of a perovskite. Since most perovskites are cubic, their characterization by x-ray diffraction is simplified. In addition, magnetic ordering may be observed and the effects of a Jahn-Teller distortion seen. (JN)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education

Sadlej-Sosnowska, Nina – Journal of Chemical Education, 1980
Describes experiments using dye solutions in liquid crystals in which polar molecules are oriented in an electrical field and devices are constructed to change their color in response to an electric signal. (CS)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education

Archer, Leonard J.; And Others – Journal of Chemical Education, 1981
Presents background information, safety notes, and laboratory procedures for synthesizing dinitrogen and dihydrogen complexes of molybdenum. The one-step method described is suitable for advanced inorganic chemistry classes. (SK)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education

Hugerat, Muhamad; Basheer, Sobhi – Revista de Educacion en Ciencias/Journal of Science Education, 2001
Presents demonstrations of chemical reactions by employing different features of various compounds that can be altered after a chemical change occurs. Experimental activities include para- and dia-magnetism in chemical reactions, aluminum reaction with base, reaction of acid with carbonates, use of electrochemical cells for demonstrating chemical…
Descriptors: Chemical Reactions, Chemistry, Demonstrations (Science), Laboratory Procedures

Hairfield, E. M.; And Others – Journal of Chemical Education, 1985
Reports a consecutive first-order reaction for which the concentrations of reactant, intermediate, and products can be determined simulataneously. This reaction is the epoxidation of 2,5-di-tert-butyl-1,4-benzoquinone (I) by alkaline hydroperoxidation using tert-butyl hydroperoxide and benzyltrimethylammonium hydroxide (Triton B) catalyst.…
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education

Adams, K. R.; Meyers, M. B. – Journal of Chemical Education, 1985
Background information, procedures used, and typical results obtained are provided for an experiment in which students determine and compare the Arrhenius activation energies (Ea) for the hydrolysis of salicin. This reaction is subject to catalysis both by acid and by the enzyme emulsin (beta-d-glucoside glycohydrolase). (JN)
Descriptors: Chemical Reactions, Chemistry, College Science, Enzymes

Awartani, Radi; And Others – Journal of Chemical Education, 1986
Describes this reaction sequence involving reactivity and synthesis of heterocycles: (1) synthesis of 2,4,6-triphenylpyrylium tetrafluoroborate, II; (2) its reaction with nucleophiles; (3) reaction of pyrylium salt II with a primary amine (benzylamine, p-methoxybenzylamine, and furfurylamine) to form the N-substituted-2,4,6-triphenylpyridinium…
Descriptors: Chemical Reactions, College Science, Higher Education, Laboratory Procedures

Borders, C. L., Jr.; And Others – Journal of Chemical Education, 1984
Reports results in the attempted synthesis of the ethyl ester hydrochlorides of 21 common L-amino acids. Procedures used in the synthesis are outlined. (JN)
Descriptors: Chemical Reactions, College Science, Higher Education, Laboratory Procedures

Bartlett, Paul A.; And Others – Journal of Chemical Education, 1984
Background information and experimental procedures are provided for the multistep synthesis of frontalin. The experiment exposes students to a range of practical laboratory problems and important synthetic reactions and provides experiences in working on a medium-size, as well as a relatively small-size scale. (JN)
Descriptors: Chemical Reactions, College Science, Higher Education, Laboratory Procedures