Article
Chemistry, Multidisciplinary
K. Rohini Das, M. Jinish Antony
Summary: Fluorescent indicators were developed for detecting endpoint in microscale redox titration. The indicators effectively reduced experiment time and chemical usage, providing students with an opportunity to practice green chemistry. The precision and accuracy of fluorescent indicators were confirmed, making them beneficial for volumetric estimation of ferrous ions in microscale quantities.
JOURNAL OF CHEMICAL EDUCATION
(2022)
Article
Chemistry, Multidisciplinary
Hailey N. Lynch, Claire Chaz Authement, Autumn Maczko, Miranda Parker, Kaylan Beaty, Anuradha Liyana Pathiranage
Summary: In this laboratory teaching experiment, gas chromatography-mass spectrometry (GC-MS) was used to analyze commercial cannabis oils, specifically focusing on three isomeric cannabinoids commonly found in cannabis products. The experiment aimed to introduce students to GC-MS analysis through the relevant topic of quality inspection, which is widely used in various industries. Students were taught the differences between the structural isomers and guided through the process of analyzing GC-MS spectra to characterize the cannabinoids present in the oil samples.
JOURNAL OF CHEMICAL EDUCATION
(2023)
Article
Chemistry, Multidisciplinary
James K. Kearns, Matthew van der Wielen
Summary: This experiment focuses on food and a common contaminant to engage student interest and effort, while providing essential instruction and experience. It offers a determination approach using commonly available instrumentation and introduces a variety of experiences to enhance scientific competence. Students can successfully complete the experiment, regardless of their math skills, and gain assurance of their growing scientific abilities when their reports align with international research.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Chemistry, Multidisciplinary
David L. A. Scarborough, Rod Hall, Kellie E. N. Vanderkruk
Summary: Inquiry- and context-based learning can enhance student motivation and interest, develop critical thinking skills, and improve assessment outcomes. This study applied IBL research projects in university chemistry courses and incorporated elements of CBL. Informal student surveys showed that the projects improved students' critical thinking, communication, and experimental design skills. Students appreciated the opportunity to delve deep into a single topic and found the projects to be reflective of real scientific work. They also identified areas for improvement in subject administration, marking schemes, and access to resources.
JOURNAL OF CHEMICAL EDUCATION
(2022)
Article
Chemistry, Multidisciplinary
Rolando M. Caraballo, Leila M. Saleh Medina, Sergio G. J. Gomez, Priscila Vensaus, Mariana Hamer
Summary: Experimental approach to chemistry is more effective in learning than textbooks alone. The inexpensive and environmentally friendly laboratory exercises on acid-base equilibrium presented in this study are suitable for teaching in a social-distance context such as during the COVID-19 pandemic. The experiments exemplify main concepts of acid-base equilibrium, buffer capacity, and titration curves using safe household reactants and no special equipment.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Chemistry, Multidisciplinary
Jose L. Cerrillo, Irene Lopez-Hernandez, A. Eduardo Palomares
Summary: The laboratory activity proposed aims to help students understand the importance of catalysis, learn and apply catalysis-related knowledge through hands-on practice, and solve water pollution problems effectively.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Chemistry, Multidisciplinary
Danielle R. Lucas, Thaiany S. C. Bressiani, Anne C. C. Gomes, Ingrid M. Hayashide, Naomi K. Simas, Maria F. F. Lelis, Ricardo M. Kuster, Paulo R. G. Moura
Summary: The laboratory experiment introduced undergraduate chemistry students to the chemical characterization of agroindustrial waste extracts using GC-MS. Students found potential compounds in the waste extracts and were encouraged to research their biological properties. The experiment showed that the hexane extract exhibited higher larvicidal activity, prompting students to further explore solutions to environmental problems in scientific literature.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Chemistry, Multidisciplinary
Sharon Groover, Justin Legleiter, Erin E. Battin
Summary: By integrating components of research experience, we have designed a unique laboratory experiment to address challenges faced by traditional undergraduate biochemical laboratory curricula, enabling students to engage in more inspiring and exciting research within scheduled undergraduate lab sessions.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Chemistry, Multidisciplinary
Terra Marie M. Jouaneh, Margaret E. Rosario, Yibo Li, Elizabeth Leibovitz, Matthew J. Bertin
Summary: Growth in the biomedical and biotechnology sectors requires a highly trained and skilled workforce. Mass spectrometry is widely used in biomedical and pharmaceutical sciences, and students need practical experience in this technique. By incorporating a mass spectrometry experiment into an existing project, students' identification skills and knowledge in mass spectrometry were improved.
JOURNAL OF CHEMICAL EDUCATION
(2022)
Article
Chemistry, Multidisciplinary
Justine Bull, Sophie Cottam, Isaac A. Gill, Paul C. Dastoor, Natalie P. Holmes
Summary: In this undergraduate teaching laboratory, students synthesize and characterize colloidal nanoparticles of organic semiconductors and evaluate their suitability for printed electronics applications. The laboratory exercise includes characterization techniques such as scanning electron microscopy, UV-visible spectroscopy, and photoluminescence spectroscopy, and teaches students how to match electron donating and accepting materials based on literature characteristics. The exercise was well-received by the students and can be adapted for various disciplines and levels of experience.
JOURNAL OF CHEMICAL EDUCATION
(2023)
Article
Chemistry, Multidisciplinary
Ilana J. Porter, Michael W. Zuerch, Anne M. Baranger, Stephen R. Leone
Summary: Ultrafast pump-probe spectroscopy experiment was developed and implemented for the undergraduate physical chemistry laboratory course at the University of California Berkeley. The experiment introduced students to solid-state chemistry and ultrafast spectroscopy concepts through classic coherent phonon dynamics principles. The experiment utilized modern equipment and techniques, and required minimal intervention from students, making it easy and safe to implement. Students obtained good experimental results and gained appreciation for the field of ultrafast laser-induced chemistry.
JOURNAL OF CHEMICAL EDUCATION
(2023)
Article
Chemistry, Multidisciplinary
Shane Harrypersad, John P. Canal
Summary: This article describes a convenient synthesis method for preparing ruthenocene in undergraduate chemistry teaching labs, incorporating elements of green chemistry and introducing students to air sensitive reactions and sublimation as a purification method. Students can explore the characterization of ruthenocene through experimental and computational approaches.
JOURNAL OF CHEMICAL EDUCATION
(2023)
Article
Chemistry, Multidisciplinary
Eugene P. Wagner, Bridget E. Murray
Summary: The experiment aims to investigate how lightning contributes to atmospheric pollutants, using guided and open inquiry to allow students to explore the process of pollutant gas production in the atmosphere.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Chemistry, Multidisciplinary
Marsha A. Grimminger, Matthew P. Tracey, Simeon J. Martinus
Summary: Introductory organic chemistry laboratory is often challenging for students to apply theoretical knowledge to practical applications, especially in distance learning. A visual experiment using conjugated azo dyes has been developed to help students understand the acid/base properties of functional groups, aiming to enhance student comprehension. Both traditional and distance learning strategies will be presented and compared in this study.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Chemistry, Multidisciplinary
Saowarux Fuangswasdi, Wanlapa Aeungmaitrepirom, Vanida Nilsom, Pritsana Ralakhee, Pumidech Puthongkham
Summary: The COVID-19 pandemic in Thailand led to a shift to online learning, but this posed a challenge for laboratory courses. To address this, the Department of Chemistry at Chulalongkorn University revised four in-class experiments to be conducted in a Lab@Home format, and included additional activities and opportunities for students to design their own experiments.
JOURNAL OF CHEMICAL EDUCATION
(2022)