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Esvan, Yannick J.; Zeinyeh, Wael – Journal of Chemical Education, 2020
The Fourier transformation (FT) is a mathematical process frequently encountered by chemistry students. However, it remains an automated background process perceived by many students as difficult to understand. In this paper we present a simple open-source web application, which can help students to understand the basics of the FT applied to…
Descriptors: Chemistry, Spectroscopy, Laboratory Procedures, Laboratory Experiments
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Marsiglia, William M.; Qamra, Rohini; Jackson, Kimberly M.; Traaseth, Nathaniel J. – Journal of Chemical Education, 2020
The design of undergraduate laboratory courses that provide meaningful research-based experiences enhances undergraduate curricula and prepares future graduate students for research careers. In this article, a course-based undergraduate research experience (CURE) laboratory module was designed for upper-division undergraduate biochemistry and…
Descriptors: Biochemistry, Science Instruction, College Science, Student Research
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Czysz, Kamryn; Schroeder, Lianne; Clark, Ginevra A. – Journal of Chemical Education, 2020
Acid--base chemistry is an important and challenging topic for virtually all chemistry students. Recent works have focused on conceptually linking molecular and symbolic representations to experimental evidence for many chemical concepts. In this work we describe a laboratory exercise designed to address students' conceptual challenges regarding…
Descriptors: Chemistry, Laboratory Experiments, Premedical Students, Laboratory Procedures
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Dolhun, John J.; Müller, Peter – Journal of Chemical Education, 2020
Single-crystal X-ray structures, melting points, and students' specific rotation results on carvone semicarbazone derivatives are presented with experimental details. Critical parameters are identified to ensure the success of the experiment. Procedures developed here were tested in a laboratory course, consisting of approximately 70 students over…
Descriptors: Chemistry, Science Instruction, Laboratory Experiments, Undergraduate Students
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Kovacevic, Tanja; Skinner, Austin; Fisk, John D.; Fishback, Vanessa; Reed, Scott M. – Journal of Chemical Education, 2020
The complete structural analysis and resynthesis of an unknown compound, selected from a library of dipeptides, provided a framework for a course that built from expository experiments toward a guided-inquiry approach. We used this semester-long lab as a replacement for conventional second semester organic chemistry laboratory and successfully…
Descriptors: Organic Chemistry, Science Instruction, Science Laboratories, Laboratory Training
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Clemons, Tristan D.; Fouché, Lise; Rummey, Cara; Lopez, Ryan E.; Spagnoli, Dino – Journal of Chemical Education, 2019
The chemistry laboratory can be a daunting place for first year university students, especially those entering one for the first time with little or no prior laboratory experience. Increasing financial constraints placed on secondary schools has restricted the ability to provide rich laboratory experiences for students before entering tertiary…
Descriptors: College Freshmen, Undergraduate Students, College Science, Science Instruction
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Mannino, Michael P.; Dunteman, Ariel P.; Demchenko, Alexei V. – Journal of Chemical Education, 2019
A robust laboratory protocol for the three-step synthesis of "p"-tolyl 2,3,4,6-tetra-"O"-benzoyl-1-thio-[beta]-d-glucopyranoside from commercial glucose pentaacetate is reported. The previously reported procedures have been modified to accommodate laboratories and students without proper training or equipment needed to conduct…
Descriptors: Organic Chemistry, Science Laboratories, Laboratory Experiments, Laboratory Procedures
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Yuan, Min; Tang, Qun; Lu, Ying; Zhang, Zhong; Li, Xiao-Hui; Liu, Shu-Mei; Sun, Xiu-Wei; Liu, Shu-Xia – Journal of Chemical Education, 2019
An integrated and research-focused laboratory experiment is developed to introduce the "antenna effect" occurring in luminescent lanthanide complexes to students. Students synthesized a lanthanide metal-organic framework (Ln-MOF) with the formula of [Eu(BTPCA)(H O)]·2DMF·nH[Subscript 2]O (Eu-BTPCA, H[subscript 3]BTPCA =…
Descriptors: Undergraduate Students, Laboratory Experiments, Science Experiments, Chemistry
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Lunelli, Bruno; Baroncini, Massimo – Journal of Chemical Education, 2019
Semimicro pressure filtration is carried out by pressurizing a suspension through pushing the piston of a gas-filled plastic syringe whose needle perforates the closure of a cylindrical filter funnel. Basic features as well as pros and cons of vacuum and pressure filtration are pointed out and compared to support rational choice between the two…
Descriptors: Laboratory Procedures, Chemistry, College Science
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Paul, Noel M.; Yoder, Ryan J.; Callam, Christopher S. – Journal of Chemical Education, 2019
Fluency in both the construction and interpretation of molecular structures is a critical learning objective in the second-year organic chemistry curriculum. With the introduction of PerkinElmer's ChemDraw structure drawing tool into undergraduate laboratory courses, students are challenged to develop fundamental molecular drawing skills using…
Descriptors: Organic Chemistry, Science Instruction, Computer Assisted Instruction, Computer Software
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Overly, Kenneth R. – Journal of Chemical Education, 2019
An experiment for the undergraduate organic chemistry laboratory involving a method for the isolation of eugenol from cloves has been developed. The experiment employs microwave-assisted extraction (MAE) of the essential oil from whole cloves using aqueous ethanol and the subsequent isolation of eugenol by acid-base extraction. The MAE allows for…
Descriptors: Undergraduate Students, College Science, Organic Chemistry, Science Experiments
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Angarita-Rivera, Paula A.; Gabbard, Devan B.; Main, Kegan A.; Timmermann, Katherine M.; Kinkade, Karla B.; Wilson, Kristy J.; Doçi, Colleen L. – Journal of Chemical Education, 2019
This laboratory experiment, designed for undergraduate nonmajors or advanced high school students, attempts to demystify the technique of spectrophotometry by utilizing a hands-on, real-world approach. Modification of the reaction for the formation of Fe[(bpy)[subscript 3]][subscript 2+] allows students to interact with vitamin C, a compound with…
Descriptors: Nutrition, Laboratory Experiments, Science Experiments, Laboratory Procedures
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McKee, James R.; Zanger, Murray; Chiariello, Carmine; McKee, James A.; Dorfner, Walter; Fasella, Elisabetta; Koo, Yumee – Journal of Chemical Education, 2019
The reduction of alkenes usually involves a hydrogen source and a catalyst. This process is both expensive and not well-suited for a large teaching laboratory. This paper presents an alternative procedure using a mixture of cobalt chloride and sodium borohydride to achieve the reduction of methyl oleate to methyl stearate. This procedure is safe,…
Descriptors: Laboratory Procedures, Science Instruction, Chemistry, Spectroscopy
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Vitaku, Edon; Christie, Hamish S. – Journal of Chemical Education, 2019
A reliable method for bleach-based alcohol oxidation has been developed. Use of sodium bisulfate as the acid additive in the reaction mixture eliminates the various problems associated with acetic acid, which has commonly been used for this type of oxidation. By conducting the reaction in an ethyl acetate/water two-phase reaction mixture,…
Descriptors: College Science, Science Instruction, Laboratory Procedures, Science Laboratories
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Cresswell, Sarah L.; Loughlin, Wendy A.; Coster, Mark J.; Green, David M. – Journal of Chemical Education, 2019
Success in undergraduate chemical experiments requires students to develop knowledge and skills of instrumentation, equipment, and chemical techniques. In this technology report, we propose an adaptable and user-focused strategy to improve students' foundational skill and proficiency with chemical laboratory techniques and instrumentation. The…
Descriptors: Interactive Video, Chemistry, Science Instruction, Undergraduate Students
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