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Liu, Shanshan; Ge, Xiuli; Zhang, Tao; Han, Yanyang; Cui, Wei; Guan, Rengui; Yang, Xin; He, Tao; Li, Qingzhong; Feng, Kai; Scheiner, Steve – Journal of Chemical Education, 2021
To deliver state-of-the-art battery knowledge to undergraduates, we designed a feasible experiment to prepare flexible packaging batteries, aiming to reproduce industrial flexible packaging batteries in general chemistry laboratories. In our procedure, the materials involved are inexpensive, safe, and easy to use. No organic solvents or toxic…
Descriptors: Equipment, Chemistry, Laboratory Procedures, Science Experiments
Samuel Fura; Samuel Abidemi Oluwole; Queen Assala Hakim; Hikari Sanchez; Daniela Toledo; Aline Andrea Quintana; Christian Agatemor – Journal of Chemical Education, 2023
Chemists have always designed and deployed cross-disciplinary approaches that interface chemistry with other disciplines to proffer solutions to many human problems. We designed a laboratory experiment that implements chemistry concepts in a biological model to prime undergraduate students to appreciate interdisciplinarity as an approach to…
Descriptors: Undergraduate Students, College Science, Science Experiments, Laboratory Experiments
Varela, Carla L.; Cabral, Ana M. T. D. P. V.; Barbosa, Isabel R.; Costa, Saul C.; Silva, Elisiário J. T.; Roleira, Fernanda M. F. – Journal of Chemical Education, 2020
Amides are usually prepared using amines and acyl halides, which often implies a two-step procedure. Alternatively, coupling reagents can be used in a single-step reaction with good yields, which seems to be suitable for organic chemistry laboratory classes. This work was designed to synthesize "N"-hexylcinnamamide through a one-step…
Descriptors: Undergraduate Students, College Science, Science Experiments, Laboratory Experiments
Applegate, Kaitlin B.; Cheek, Patrick R.; Inlow, Jennifer K. – Biochemistry and Molecular Biology Education, 2019
Laboratory exercises for undergraduate biochemistry students are described in which changes in sugar content during fermentation of the trendy beverage kombucha are analyzed by three methods: thin layer chromatography, a 3,5-dinitrosalicylic acid assay, and a standard commercial blood glucose meter. Each of the three analyses can be completed in a…
Descriptors: Majors (Students), Chemistry, Biology, College Science
Bodzewski, Kentaro Y.; Caylor, Ryan L.; Comstock, Ashley M.; Hadley, Austin T.; Imholt, Felisha M.; Kirwan, Kory D.; Oyama, Kira S.; Wise, Matthew E. – Journal of Chemical Education, 2016
A differential scanning calorimeter was used to study homogeneous nucleation of ice from micron-sized aqueous ammonium sulfate aerosol particles. It is important to understand the conditions at which these particles nucleate ice because of their connection to cirrus cloud formation. Additionally, the concept of freezing point depression, a topic…
Descriptors: Chemistry, Laboratory Procedures, Laboratory Equipment, Undergraduate Students
Pacot, Giselle Mae M.; Lee, Lyn May; Chin, Sung-Tong; Marriott, Philip J. – Journal of Chemical Education, 2016
Gas chromatography-mass spectrometry (GC-MS) and GC-tandem MS (GC-MS/MS) are useful in many separation and characterization procedures. GC-MS is now a common tool in industry and research, and increasingly, GC-MS/MS is applied to the measurement of trace components in complex mixtures. This report describes an upper-level undergraduate experiment…
Descriptors: Spectroscopy, Undergraduate Students, Science Experiments, Laboratory Procedures
Johnston, Meghan R.; Makriyannis, Alexandros; Whitten, Kyle M.; Drew, Olivia C.; Best, Fiona A. – Journal of Chemical Education, 2016
In order to introduce the concepts of biocatalysis and its utility in synthesis to organic chemistry students, a multistep synthesis of endogenous cannabinergic ligand 2-arachidonoylglycerol (2-AG) was tailored for use as a laboratory exercise. Over four weeks, students successfully produced 2-AG, purifying and characterizing products at each…
Descriptors: Organic Chemistry, Science Laboratories, College Science, Science Instruction
Li, Suxia; Wu, Haizhen; Zhao, Jian; Ou, Ling; Zhang, Yuanxing – Biochemistry and Molecular Biology Education, 2010
In an effort to achieve high success in knowledge and technique acquisition as a whole, a biochemistry and molecular biology experiment was established for high-grade biotechnology specialty students after they had studied essential theory and received proper technique training. The experiment was based on cloning and expression of alkaline…
Descriptors: Experimental Groups, Biotechnology, Molecular Biology, Biochemistry
Shultz, Jeffry – Journal of Science Education and Technology, 2009
I present a laboratory procedure for illustrating transcription, post-transcriptional modification, gene conservation, and comparative genetics for use in undergraduate biology education. Students are individually assigned genes in a targeted biochemical pathway, for which they design and test polymerase chain reaction (PCR) primers. In this…
Descriptors: Laboratory Procedures, Genetics, Biology, Science Instruction
Mehl, Andrew F.; Crawford, Mary A.; Zhang, Lei – Journal of Chemical Education, 2009
Few laboratory procedures describe the use of circular dichroism (CD) at the undergraduate level. To increase the number of laboratory exercises using CD, a thermal denaturation study of myoglobin using CD is described to assess protein stability. Values obtained from a more classic linear data analysis approach are consistent with data analyzed…
Descriptors: Laboratory Procedures, Data Analysis, Science Experiments, Spectroscopy
Gandhari, Rajani; Maddukuri, Padma P.; Thottumkara, Vinod K. – Journal of Chemical Education, 2007
The experiment demonstrating the feasibility of using water as a solvent for organic reactions which highlights the cost and environmental benefits of its use is presented. The experiment encourages students to think in terms of the reaction mechanism of the oxidation of aldehydes knowing that potassium persulfate is the active oxidant in Oxone…
Descriptors: Chemistry, Organic Chemistry, Water, Laboratory Experiments
Jenkins, Kristin P.; Bielec, Barbara – American Biology Teacher, 2006
Providing a biotechnology experience for students can be challenging on several levels, and time is a real constraint for many experiments. Many DNA based methods require a gel electrophoresis step, and although some biotechnology procedures have convenient break points, gel electrophoresis does not. In addition to the time required for loading…
Descriptors: Biotechnology, Genetics, Laboratory Experiments, Science Experiments
Supalo, Cary A.; Mallouk, Thomas E.; Rankel, Lillian; Amorosi, Christeallia; Graybill, Cameala M. – Journal of Chemical Education, 2008
The creative application of low-cost, readily available materials and techniques promotes inclusion and provides accessibility in the classroom and laboratory for students who are blind or have low vision. Difficulties encountered by these students include operation of laboratory equipment, execution of ordinary laboratory procedures, and use of…
Descriptors: Laboratory Procedures, Laboratory Equipment, Molecular Structure, Science Instruction
Carvalho-Knighton, Kathleen M.; Keen-Rocha, Linda – Journal of Chemical Education, 2007
The effectiveness of two different laboratory techniques is compared to teach students majoring in science in a general chemistry laboratory. The results demonstrated that student laboratory activities with computer-interface systems could improve student understanding.
Descriptors: Chemistry, Computer Assisted Instruction, College Science, Science Instruction

Boyer, Richard; And Others – Journal of Chemical Education, 1985
Describes experiments in which students determine the ground state ionization constant (GSIC) by analyzing the absorption spectra of 2-naphthol in acidic, basic, and buffered solutions. Information on the ground and excited state ionization constants and on the kinetics of the excited state deprotonation-protonation reaction is included. (JN)
Descriptors: Chemistry, College Science, Higher Education, Laboratory Procedures