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Rivadulla, Francisco – Journal of Chemical Education, 2019
The Maxwell distribution of speeds, f(v), is the starting point for the calculation of the transport coefficients in kinetic-molecular theory. Most physical chemistry textbooks follow a path to derive f(v) similar to that used by Maxwell, which makes it difficult for students to understand its relationship with the equilibrium state of the system,…
Descriptors: Molecular Structure, Theories, Science Instruction, Chemistry
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Vahedi, Amid; Farnoud, Amir M. – Journal of Chemical Education, 2019
The increasing industrial and biomedical applications of nanomaterials have enhanced the need to educate a well-trained nanotechnology workforce. This need has led to efforts to introduce hands-on, nanotechnology-based, experimental modules into high school and college level courses in science and engineering. However, the majority of such efforts…
Descriptors: Chemical Engineering, Science Instruction, Molecular Structure, Technology
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Binder, Rudolf; Lämmle, Carina – Journal of Chemical Education, 2019
When student projects require an analytical step that is robust and sufficiently selective, high performance thin layer chromatography (HPTLC) is a method to be considered. However, for student laboratories not equipped for HPTLC, sample application as a sharp narrow band is a hurdle. The low eluting power of water on reversed phase plates can be…
Descriptors: Chemistry, Science Instruction, Science Laboratories, Student Projects
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Werby, Sabrina H.; Cegelski, Lynette – Journal of Chemical Education, 2019
A six-laboratory session biofilm-focused biochemistry laboratory module is described. Through just six four-hour laboratory sessions over three weeks, students first master background knowledge and fundamental experimental techniques to explore questions involving bacterial biofilms at the interface of microbiology and biochemistry and then…
Descriptors: Laboratory Experiments, Science Experiments, Undergraduate Students, Design
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Šafranko, Silvija; Živkovic, Pavo; Stankovic, Anamarija; Medvidovic-Kosanovic, Martina; Széchenyi, Aleksandar; Jokic, Stela – Journal of Chemical Education, 2019
This work combines laboratory quantitative analysis of colored solutions and common devices for digital imaging (digital or web cameras or mobile phones, i.e., smartphones). ColorX software, specially designed for this study, was used for data collection and analysis in order to calculate concentrations of colored solutions from measured RGB…
Descriptors: Computer Graphics, Science Laboratories, Laboratory Experiments, Color
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Debije, Michael G. – Journal of Chemical Education, 2019
This work presents an outline for a full-quartile design-based learning laboratory-based course suitable for final year Bachelor's students. The course has been run for 5 years in the department of Chemical Engineering and Chemistry. The course attempts to provide a complete laboratory experience for its students, including an authentic research…
Descriptors: Design, Chemistry, Science Instruction, College Science
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Cooke, Jason – Journal of Chemical Education, 2019
[NiBr[subscript 2](PPh[subscript 3])[subscript 2]] and [NiBr[subscript 2](dppe)] are prepared from nickel bromide hydrate and phosphine. These brightly colored coordination compounds are then converted into the related organometallic compounds "trans"-[NiBr(Mes)(PPh[subscript 3])[subscript 2]] and [NiBr(Mes)(dppe)] (Mes =…
Descriptors: Chemistry, Science Instruction, Spectroscopy, Laboratory Experiments
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Contreras-Cruz, David A.; Cantú-Reyes, Margarita; García-Sánchez, Juan M.; Peña-Ortíz, Daniel; Sánchez-Carmona, Miguel A.; Miranda, Luis D. – Journal of Chemical Education, 2019
A photochemical reactor was tested in an undergraduate teaching laboratory through the environmentally friendly aromatization of a 1,4-dihydropyridine, successfully using air as an oxidant, organic dye fluorescein as a photosensitizer, and sodium carbonate as a base. This experiment allowed students to be taught key concepts of photochemistry,…
Descriptors: Light, Undergraduate Students, Science Laboratories, Science Experiments
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Schubert, Frederic E. – Journal of Chemical Education, 2019
The cannon boring experiment of Count Rumford, where eight kilograms of water were boiled by metal on metal friction, is investigated. Consideration of this dramatic demonstration can enrich classroom discussions of calorimetry, units of measure, elements, and thermodynamics. A section pertaining to use of the article in the classroom appears…
Descriptors: Chemistry, Physics, Science Instruction, Science Experiments
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Phillips, Jesse A.; Jones, Gregory H.; Iski, Erin V. – Journal of Chemical Education, 2019
Although kinetics forms a foundational part of the chemical curriculum, laboratory experiences with the subject are often limited and lack relevance to the actual practice of chemistry. Presented is an inquiry-based lab focused on Michaelis-Menten kinetics, implemented in an upper-level, university physical chemistry laboratory. Student learning…
Descriptors: Inquiry, Science Instruction, Chemistry, Kinetics
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Finkenstaedt-Quinn, S. A.; Snyder-White, E. P.; Connor, M. C.; Gere, A. Ruggles; Shultz, G. V. – Journal of Chemical Education, 2019
Lewis structures are fundamental to learning chemistry, yet many students struggle to develop a complex understanding of its meaning and uses. Writing-to-Learn supports students in developing a deeper conceptual understanding of the topic, making it an ideal pedagogy to apply to student learning of Lewis structures. One difficulty often associated…
Descriptors: Peer Evaluation, Revision (Written Composition), Content Area Writing, Writing Assignments
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Lopper, Matthew E. – Journal of Chemical Education, 2019
This paper describes a responsive, digital periodic table that has been specifically designed as a visual aid for high school or college chemistry classrooms and lecture halls. The periodic table runs in a web browser and can therefore be used in any classroom that has a digital projector and screen. It features click-to-highlight table cells that…
Descriptors: Visual Aids, Computer Uses in Education, Chemistry, Secondary School Science
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Fung, Fun Man; Choo, Wen Yi; Ardisara, Alvita; Zimmermann, Christoph Dominik; Watts, Simon; Koscielniak, Thierry; Blanc, Etienne; Coumoul, Xavier; Dumke, Rainer – Journal of Chemical Education, 2019
Field trips are a common activity for instructors to engage students and give them a first-hand understanding of a subject, especially in environmental chemistry. However, the planning and execution for a field trip is logistically challenging and demanding of human and material resources. Here, we demonstrate the conduct of a virtual overseas…
Descriptors: Teaching Methods, Field Trips, Chemistry, Science Instruction
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Rubner, Isabel; Berry, Ashton J.; Grofe, Theodor; Oetken, Marco – Journal of Chemical Education, 2019
A significant challenge for the global community is the increasing demand for clean and renewable energy technologies. However, a lack of knowledge of these technologies threatens to impede their adoption. The development of cheap, effective, and easy-to-use chemical and electrochemical storage technologies is crucial if countries are to move away…
Descriptors: Energy Conservation, Science Instruction, Chemistry, Hands on Science
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Papai, Rodrigo; Romano, Majara Araujo; Arroyo, Aline Rodrigues; Rodrigues da Silva, Bárbara; Tresoldi, Bruno; Winter, Gabriela Cabo; Costa, Julia Messias; Freitas Santos, Maria Aparecida; Prata, Matheus Damasceno; Gaubeur, Ivanise – Journal of Chemical Education, 2019
A creative apparatus for use in a hands-on laboratory experiment that allows the visualization of the vapor pressure as a function of temperature is described in this paper. Inspired by homemade barometers and using simple materials that are easily accessible for teaching laboratories, a lowcost system for the establishment of the vapor-pressure…
Descriptors: Physics, Chemistry, Laboratory Experiments, Science Experiments
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