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Peer reviewed
Direct linkKelli S. Khuong; Fabio Agnelli; Matthew A. Parker – Journal of Chemical Education, 2023
S[subscript N]2 reactions are of fundamental importance in introductory organic chemistry courses, and a number of experiments suitable for the first-semester undergraduate organic lab have been previously reported. Most of these experiments have used alkyl halides as electrophiles, but alkyl halides are often less than ideal for reasons of…
Descriptors: Undergraduate Students, Organic Chemistry, Introductory Courses, Laboratory Experiments
Joshua H. Williams; Musbau Gbadomosi; Andrew B. Greytak; Michael L. Myrick – Journal of Chemical Education, 2023
We describe an experiment in which students use research-grade instrumentation to collect gas adsorption data in triplicate in a single 3 h laboratory period. The experiment reinforces the thermodynamic concepts taught in upper level physical chemistry courses and hands-on experience with instrumentation used in research laboratories. The speed of…
Descriptors: Chemistry, Science Instruction, Laboratory Experiments, Thermodynamics
Grewal, Yugjeet S.; Reynoso, Raul Fernando; Reyes, Ruben; Walkup, John R.; Walkup, Michael A. – Physics Teacher, 2022
Using a Geiger-Müller tube, sound-capturing software, and a simple computer program, students measured to reasonable precision the half-value layer of steel in absorbing high-energy gamma rays from a Radium Ore Revigator (pronounced re-vig-a-tor with the accent on "vig"), an early quack medical device. This article describes the process…
Descriptors: Science Experiments, Radiation, Undergraduate Students, Scientific Research
Siddiqui, Khawar S.; Poljak, Anne; Ertan, Haluk; Bridge, Wallace – Biochemistry and Molecular Biology Education, 2022
Determination of enzyme activity is crucial for discovery, research, and development in life sciences. The activity of enzymes is routinely determined using spectrophotometric assays that measure rates of substrate consumption or product formation. Though colorimetric-based detection systems are simple, rapid, and economical to perform, the…
Descriptors: Biochemistry, Biological Sciences, College Science, Heat
Hakim, Aliefman; Jufri, A. Wahab; Jamaluddin; Supriadi; Mutmainnah, Putri Ayu – Journal of Chemical Education, 2020
Secondary metabolite compounds contained in each plant genus have certain characteristics, which is true also of the flavonoid in the genus "Artocarpus." In the experiment described here, third-year undergraduate students performed the isolation and characterization of cycloartocarpin from the roots of "Artocarpus altilis"…
Descriptors: Science Instruction, College Science, Organic Chemistry, Science Laboratories
Abu-Much, Riam – Journal of Chemical Education, 2021
This study proposes a lab experiment consisting of three consecutive steps designed to expose undergraduate students to the fundamental aspects of nanoscience. Two different procedures for the reduction of silver ions were provided: Th was obtained. Next, the students explored the aggregation process of silver nanoparticles by converting one…
Descriptors: Chemistry, Science Experiments, Undergraduate Students, Science Instruction
Download full textStephanie A. Carr; Stephanie L. Mathews; Justin A. Pruneski; Nikolas M. Stasulli – Journal of Microbiology & Biology Education, 2024
In this article, we describe curricular materials developed to engage undergraduate students in evolutionary thinking around antibiotic resistance using the MEGA-plate experiment (Microbial Evolution and Growth Arena). This elegant and visual experiment, developed by the Kishony Lab, shows the development of antibiotic resistance on the timescale…
Descriptors: Biochemistry, Science Instruction, Laboratory Experiments, Drug Therapy
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
Hal Van Ryswyk; Hanna Z. Porter; Connor K. M. Seto; Ixchel Lopez; Emma Dy – Journal of Chemical Education, 2023
Pulsed field gradient nuclear magnetic resonance (NMR) is used to estimate the size of quantum dots (QDs) produced in a simple, fast, small-scale synthesis. This upper-division laboratory experiment teaches the basics of QD synthesis and pulsed field gradient NMR, a powerful technique for measuring diffusion coefficients in solution. The diffusion…
Descriptors: Chemistry, Science Instruction, Scientific Concepts, Nuclear Energy
Vincent A. Sichula – Journal of Chemical Education, 2023
A multistep synthesis of a metal-free organic dye-sensitizer for solar cells was developed as a multifaceted research project for upper-division undergraduate students with a goal of introducing students to the application of organic synthesis in material science, and renewable energy research. The characterization of the dye is done by thin-layer…
Descriptors: Organic Chemistry, Laboratory Experiments, Science Instruction, Student Research
John G. D'Angelo – Journal of Chemical Education, 2023
In recent years, course-based undergraduate research experiences (CUREs) have been increasing in popularity as replacements for or adjuvants to the traditional laboratory experience. This approach shifts the focus from an exercise-based curriculum to an experiment-based curriculum and provides students with a more authentic and higher-impact…
Descriptors: Undergraduate Students, Student Research, Student Experience, Laboratory Experiments
Hailey N. Lynch; Claire Chaz Authement; Autumn Maczko; Miranda Parker; Kaylan Beaty; Anuradha Liyana Pathiranage – Journal of Chemical Education, 2023
In this laboratory teaching experiment, commercial cannabis oils were analyzed by undergraduate organic chemistry students using gas chromatography-mass spectrometry (GC-MS) to investigate three isomeric cannabinoids commonly found in cannabis products: cannabidiol (CBD), [delta][superscript 9]-tetrahydrocannabinol ([delta][superscript 9]-THC),…
Descriptors: Spectroscopy, Marijuana, Undergraduate Students, Undergraduate Study
Ping Y. Furlan; Alexander Y. Furlan; Pamela L. Bryant; Natalie R. Thorn; Clarissa I. Reckline – Journal of Chemical Education, 2023
This manuscript introduces a novel General Chemistry experiment designed to incorporate modern instrumental methods and bioinspired materials in the context of marine environments and sustainability. The experiment explores the influence of collagen on the formation of calcium carbonate (CaCO[subscript 3]) polymorphs over two 2 h lab sessions,…
Descriptors: Chemistry, Science Instruction, Marine Education, Sustainable Development
Pillay, Letitia – Journal of Chemical Education, 2020
Inductively coupled plasma optical emission spectroscopy (ICP-OES) is one of the most commonly used analytical techniques for the measurement of metals in environmental matrices. However, one of the drawbacks of ICP-OES is interference, viz., spectral and nonspectral (due to transport effects) interference. In this simple laboratory experiment,…
Descriptors: Science Experiments, Spectroscopy, Chemistry, Laboratory Experiments
Faville, Scott C.; Harris-Hamdscomb, Kes; Harker, Owain; Mattison, Stephanie; Tamorite, Hajie; Bristowe, Joshua; Daly, Daniel; Ege, Raissa; He, Haoyuan; Jones, Julian; McCorkindale, Abby; Mei, Kerry; Monson, Ashleigh; Moree, Lana; Perkovic, Finley; Rickerby, Georgia; Robinson, Jack; Rudkin, Felix; Whibley, Luke; Worthington, Rebecca; Ennis, Courtney; de la Harpe, Sara; Brind, Thomasin; Hopkins, Andrew; Winefield, Kaleb; Hendrickx, Sarah; Caljon, Guy; Perry, Benjamin; Vernall, Andrea J. – Journal of Chemical Education, 2022
An undergraduate laboratory was developed as part of the Drugs for Neglected Diseases "initiative's" Open Synthesis Network. This activity aimed to develop new compounds efficacious against visceral leishmaniasis. Students successfully synthesized, purified, and characterized ten different benzoxazole amides that were sent for biological…
Descriptors: College Science, Undergraduate Students, Laboratory Experiments, Diseases
