Yearty, Kasey L. published the artcileDeveloping and Implementing Multioutcome Experiments in Undergraduate Teaching Laboratories To Promote Student Ownership of the Experience: An Example Multioutcome Experiment for the Oxidation of Alcohols, SDS of cas: 584-02-1, the main research area is multioutcome experiment undergraduate teaching laboratory student experience oxidation alc.
Single-outcome experiments are used in the undergraduate instructional laboratory, particularly for large lectures associated with multiple sections of instructional laboratories, due in large part to efficiencies associated with chem. purchases, experiment preparations, and assessments. Despite the practical advantages, single-outcome experiments are not effective in encouraging students to critically analyze and interpret their acquired individual results. Instead, students are satisfied if their results are the same as or similar to all of their classmates’ results, limiting the opportunity for engagement with the laboratory content. In contrast, multioutcome experiments (MOEs) require students to explore the same chem. reaction or transformation but obtain individual results. Individualization of results is accomplished by using a set of starting materials or reagents, one of which is assigned to each student. Students do not know the identity of the assigned component but may be given possible options for its identity. Students elucidate the identity of their individualized products, using modern anal. techniques such as gas chromatog., Fourier-transform IR (FTIR) spectroscopy, and NMR (NMR) spectroscopy, and deduce the unknown component of their experiment An example MOE for the oxidation of alcs. is described herein. A traditional single-outcome experiment that utilized a common household oxidizing agent (hypochlorite bleach), rather than a heavy metal-containing alternative, was modified. For the MOE modification, one unknown secondary alc. (2-pentanol, 3-pentanol, or 3-methyl-2-butanol) was oxidized using bleach. Each student pair was assigned one of three possible unknown alcs., all of which were constitutional isomers of secondary alcs. Students knew the identities of the three possible alcs. Anal. of their oxidation products was accomplished using FTIR and benchtop 1H NMR spectroscopies. Students interpreted their spectra and deduced the identity of the unknown alc. they were assigned. This experiment provides a tangible framework to understand the applicability of the oxidation reaction and the utility of FTIR and 1H NMR spectroscopies.
Journal of Chemical Education published new progress about Gas chromatography Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, SDS of cas: 584-02-1.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts