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An Introductory Organic Lab for the Problem-Solving Lab Approach

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Edward G. Neeland

Department of Chemistry, Okanagan University-College, Kelowna, BC V1V 1V7, Canada

J. Chem. Educ., 1999, 76 (2), p 230

DOI: 10.1021/ed076p230

Publication Date (Web): February 1, 1999

Abstract

We have converted our second-year organic chemistry labs to a problem-solving format, with a very positive student and instructor response. To overcome some of the students' anticipated nervousness about the PSL approach, we have developed an introductory organic laboratory that challenges students to complete the lab using the PSL method but at a very gradual pace, which builds their confidence in the method. The lab begins by asking the students to physically separate sand, a polymer, and an organic unknown. They then continue by purifying the organic compound and determining its purity using a variety of organic chemistry techniques. The completion of this lab introduces students to the concepts of differing solubilities, filtration, separatory funnel extraction, drying agents, thin layer chromatography, rotoevaporation, recrystallization, and mixed melting points

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Organic Chemistry

Keywords (Pedagogy):

Problem Solving / Decision Making

Keywords (Subject):

Learning Theories

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Citing Articles

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This article has been cited by 3 ACS Journal articles (3 most recent appear below).

Predicted versus Actual Performance in Undergraduate Organic Chemistry and Implications for Student Advising
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Journal of Chemical Education2007 84 (9), 1448
- Predicted versus Actual Performance in Undergraduate Organic Chemistry and Implications for Student Advising
  David P. Pursell
  Journal of Chemical Education2007 84 (9), 1448
  Performance as measured by grades in the first and second semesters of organic chemistry was predicted using pre-college measures (SAT scores, high school rank, validation exams) and college measures (general chemistry GPA, overall college GPA prior to ...
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A One-Hour Practical Lab Exam for Organic Chemistry
Edward G. Neeland
Journal of Chemical Education2007 84 (9), 1453
- A One-Hour Practical Lab Exam for Organic Chemistry
  Edward G. Neeland
  Journal of Chemical Education2007 84 (9), 1453
  A lab practical exam for second-year organic chemistry is presented that tests multiple lab skills and theory that the students have acquired directly from laboratory experiences. This exam motivates students to learn lab skills and is an effective end-of-...
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The State of Organic Teaching Laboratories
Gail Horowitz
Journal of Chemical Education2007 84 (2), 346
- The State of Organic Teaching Laboratories
  Gail Horowitz
  Journal of Chemical Education2007 84 (2), 346
  This review explores the dramatic changes that have taken place in the organic chemistry laboratory course over the last two to three decades. The most significant changes have been in the areas of pedagogy and technology. Significant inroads have been ...
  Abstract | Hi-Res PDF | PDF w/ Links