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Johnson, Bettie Obi; Golonka, Annette M.; Emmanuel, Khalisha A.; Ponnarasu, Jeffshan J.; Pryor, Joseph E. – Journal of Chemical Education, 2022
A novel undergraduate analytical chemistry experiment involving the identification and quantification of linalool in essential oils was developed. The experiment uses the internal standard method with headspace solid phase microextraction (SPME) and gas chromatography--mass spectrometry (GC-MS). This method is applicable to any linalool-containing…
Descriptors: College Science, Chemistry, Science Experiments, Methods
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Khalid, Habiba; Amin, Farrukh Raza; Chen, Chang – Biochemistry and Molecular Biology Education, 2022
An integrated laboratory experiment was designed for introducing biochemistry students to basic static biochemistry to deepen their understanding on the properties and analysis of biomolecules such as total carbohydrates, lipid, protein, and protein-constituent amino acids. Food represents a very important source of biomolecules of technological…
Descriptors: Laboratory Experiments, Science Experiments, Introductory Courses, Biochemistry
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Ha, Hye Jin; Jang, Taehun; Sohn, Sang Ho – Physics Education, 2022
In this study, we derived several formulas for the currents induced in a circular loop by a magnet connected to a spring-based simple harmonic oscillation system. In addition, we conducted an experiment for measuring the induced currents and compared the results with the theoretical prediction. It was confirmed that the prediction from the derived…
Descriptors: Science Instruction, Magnets, Motion, Laboratory Equipment
Danielle L. Pearson; Russell R. A. Kitson – Journal of Chemical Education, 2022
An introductory normal phase column chromatography experiment is described and evaluated for second year undergraduate chemistry laboratory class. The experiment involves a nucleophilic substitution yielding a crude mixture of reactant and one product, both of which are brightly colored and contrasting, creating a clearly visual separation when…
Descriptors: Undergraduate Study, Visual Aids, College Science, Science Education
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Sarah Ritter; Liza Abraham – Journal of Chemical Education, 2022
This project introduces green chemistry to the undergraduate laboratory through two pedagogical techniques: undergraduate research and guided-inquiry. Through these two learning activities, an efficient synthetic procedure for the PRINS cyclization of citronellal into isopulegol, focused on minimizing negative environmental impact, was developed.…
Descriptors: Organic Chemistry, Science Laboratories, Undergraduate Students, Student Research
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Mark F. Mechelke – Journal of Chemical Education, 2022
A drug discovery project has been successfully implemented in an advanced undergraduate organic chemistry laboratory. In the laboratory, a five-step synthetic sequence is used to prepare five analogues of 13-phenyl-1-tridecanol. These compounds are key precursors in the synthesis of 2-oxo-14-phenyltetradecanes. This class of compounds, isolated…
Descriptors: Organic Chemistry, Science Instruction, Science Laboratories, Student Research
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Pérgola, Martín; Sacco, Natalia J.; Bonetto, M. Celina; Galagovsky, Lydia; Cortón, Eduardo – Biochemistry and Molecular Biology Education, 2023
Nowadays there is a concern to improve the quality of education by including an interdisciplinary approach of concepts and their integration in the curriculum of scientific disciplines. The development of microbial fuel cells as a potential alternative for production of renewable energies gives undergraduate students the challenge of integrating…
Descriptors: Science Experiments, Science Education, Undergraduate Students, Energy
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Torres, Mariela Analía; Lacosegliaz, Mariano José; Viola, Carolina María; Pajot, Hipólito Fernando; Nieto-Peñalver, Carlos Gabriel – Journal of Biological Education, 2023
In the environment, communication among microorganisms is a key aspect of their lives. Through communication, single cells of a microbial population can coordinate their gene expression and, in consequence, their physiology. Quorum sensing systems (QS) are one of these mechanisms that allow this communication through the production and detection…
Descriptors: Undergraduate Students, Microbiology, College Science, Science Instruction
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Kampfmann, Teresa; Bernert, Philip; Lang, Daniel J. – Research Evaluation, 2023
The number of real-world laboratories (RwLs) as research settings to address sustainability problems by using collaborative and experimental approaches has been growing steadily over the past years. RwLs are widely considered promising settings for the production of action-orientated knowledge in order to contribute solving wicked real-world…
Descriptors: Evaluation Methods, Cooperation, Research, Laboratories
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Li, Aini; Roberts, Gareth – Cognitive Science, 2023
We investigated the emergence of sociolinguistic indexicality using an artificial-language-learning paradigm. Sociolinguistic indexicality involves the association of linguistic variants with nonlinguistic social or contextual features. Any linguistic variant can acquire "constellations" of such indexical meanings, though they also…
Descriptors: Artificial Intelligence, Sociolinguistics, Context Effect, Stereotypes
Hilary Onbey; Kaitlin Stringfellow; Rajeev B. Dabke; Zewdu Gebeyehu; Samuel Melaku – Journal of Chemical Education, 2023
The use of a multicompartment electrochemical cell for the potentiometric determination of solubility product constants of aqueous I[superscript -], Br[superscript -], SCN[superscript -], and Cl[superscript -] salts of silver is presented. An electrochemical cell presented in this study contained multiple half-cells made of disposable drinking…
Descriptors: Undergraduate Study, College Science, Chemistry, Laboratory Experiments
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Francis Bru; Sofie M. P. Vanden Broeck; Gianmarco Pisano`; Klaartje De Buysser; Catherine S. J. Cazin – Journal of Chemical Education, 2023
The implementation of a laboratory exercise in an undergraduate chemistry course, where students perform a comparison of three different synthetic methods toward [Cu(Cl)(IPr)]-complexes (IPr = N,N'-bis(2,6-diisopropylphenyl)imidazol-2-ylidene), is described. The students are introduced to the continuous improvement of reactions in terms of green…
Descriptors: Undergraduate Study, College Science, Chemistry, Conservation (Environment)
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Jennifer Nguyen; Ali Akdeniz; Chantelle Lindsay Anfuso; Joshua D. Morris – Journal of Chemical Education, 2023
At-home chemistry experiments are increasingly important to enable high-quality online and hybrid instruction. These class modalities provide significant challenges and also dramatically expand the accessibility of education to those who work or care for family during traditional school hours or have significant commutes to campus. This work…
Descriptors: Chemistry, Science Experiments, Distance Education, Science Instruction
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Deng-Guang Yu; Qiang Li; Wenliang Song; Lin Xu; Kaihui Zhang; Tao Zhou – Journal of Chemical Education, 2023
The essence of higher education is to cultivate innovative talents for the society. Hence, higher education institutions (HEIs), on the one hand, need to respond to social needs and government policies. On the other hand, they need to keep pace with the times and improve the details of teaching to improve the effectiveness of education. In this…
Descriptors: Higher Education, Innovation, Safety Education, Laboratory Experiments
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Laura M. Hancock; David J. McGarvey; Daniela Plana – Journal of Chemical Education, 2023
A laboratory experiment in which [superscript 1]H NMR and UV-vis spectroscopies are applied to probe the temperature dependence of a monomer-dimer equilibrium involving a cyclopentadienone derivative is described and discussed. Details of the data analysis for extraction of equilibrium constants from the raw experimental data from both techniques…
Descriptors: Undergraduate Students, Thermodynamics, Chemistry, Science Instruction
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