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Showing 1 to 15 of 191 results Save | Export
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Pemberton, Andrew T.; Magers, D. Brandon; King, Daniel A. – Journal of Chemical Education, 2019
Thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), and computational chemistry are used in concert to evaluate the thermal decomposition of calcium acetate monohydrate, Ca(C[subscript 2]H[subscript 3]O[subscript 2])[subscript 2]·H[subscript 2]O, and to engage students in high-level thinking as they synthesize results…
Descriptors: Spectroscopy, Science Instruction, Thinking Skills, Chemistry
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Blackburn, Richard A. R.; Villa-Marcos, Barbara; Williams, Dylan P. – Journal of Chemical Education, 2019
A series of laboratory themed simulations developed by Learning Science Ltd. were integrated into a first year laboratory module at the University of Leicester. These simulations allow students to attempt the experiments they will do in the laboratory in a risk-free way that provides the opportunity to make mistakes and learn how to correct them…
Descriptors: Chemistry, Science Instruction, Teaching Methods, Learner Engagement
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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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Schneider, Elia M.; Bärtsch, Amadeus; Stark, Wendelin J.; Grass, Robert N. – Journal of Chemical Education, 2019
A simple synthesis of fluorescent carbon quantum dots from lemon juice is described to introduce advanced high-school students and undergraduate college students to nanoparticle synthesis and quantum dots. The synthesis is based on the carbonization of lemon juice using only a hot plate stirrer. Column chromatography is used to separate different…
Descriptors: Science Instruction, Teaching Methods, High School Students, Foreign Countries
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Lazenby, Katherine; Rupp, Charlie A.; Brandriet, Alexandra; Mauger-Sonnek, Kathryn; Becker, Nicole M. – Journal of Chemical Education, 2019
Understanding the nature and purpose of models, including mathematical models, is critical to enabling undergraduate chemistry students to use models to predict and explain phenomena. However, students often do not have systematic conceptions about different kinds of models. To gain a sense of how students understand different models in the…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Teaching Methods
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Ferraro, Giovanni; Fratini, Emiliano – Journal of Chemical Education, 2019
A procedure for one-pot preparation and characterization of silver 1D nanostructures is described. The main advantages of this synthetic approach are the simplicity and reproducibility, where the size of the final product can be controlled just by changing the reaction time. This experiment is designed as a laboratory introduction to colloidal…
Descriptors: Color, Science Instruction, Teaching Methods, Undergraduate Students
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Farhat, Naha J.; Stanford, Courtney; Ruder, Suzanne M. – Journal of Chemical Education, 2019
Assessments can provide instructors and students with valuable information regarding student's level of knowledge and understanding, in order to improve both teaching and learning. In this study, we analyzed departmental assessment quizzes given to students at the start of Organic Chemistry 2, over an eight year period. This assessment quiz was…
Descriptors: Organic Chemistry, Teaching Methods, Science Instruction, Science Tests
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Stanish, Paul C.; Siu, Howard; Radovanovic, Pavle V. – Journal of Chemical Education, 2019
Inorganic phosphors are the main component of light emitting diodes which have caused the revolution in lighting industry as an energy-efficient and long-lasting replacement of traditional incandescent light bulbs and fluorescent tubes. They are also used in various consumer products and displays and can potentially find applications in…
Descriptors: Inorganic Chemistry, Science Instruction, Holistic Approach, Teaching Methods
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Kolonko, Erin M.; Kolonko, Kristopher J. – Journal of Chemical Education, 2019
Strategies for teaching NMR spectral interpretation in the undergraduate organic chemistry curriculum are often faculty-centered and can lead to student reliance on rote memorization and "guess and check" methods rather than critical-thinking skills for structure determination. This article describes a student-focused methodology for the…
Descriptors: Spectroscopy, Inquiry, Active Learning, Organic Chemistry
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Shimizu, Emily A.; Cory, Brett; Hoang, Johnson; Castro, Giovanni G.; Jung, Michael F.; Vosburg, David A. – Journal of Chemical Education, 2019
A green laboratory experiment has been developed in which students perform an aqueous oxidation/cycloaddition reaction to convert salicyl alcohol into a pentacyclic diepoxydione that is readily isolated by filtration. Drawing on their knowledge of periodate-mediated 1,2-diol cleavage, students propose a mechanism for the oxidation of salicyl…
Descriptors: Chemistry, Science Instruction, Teaching Methods, Laboratory Experiments
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Crawford, Garland L.; Kloepper, Kathryn D. – Journal of Chemical Education, 2019
The teaching lab is an important component of training and developing undergraduate chemistry students. The lab provides a complex teaching environment where faculty address a number of student-centered goals, including the development of technical proficiency, demonstrations of theoretical concepts, promotion of teamwork, and modeling of data…
Descriptors: Undergraduate Students, Teaching Methods, Science Laboratories, Chemistry
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Sattar, Simeen – Journal of Chemical Education, 2019
Pigments, dyes, and transition-metal compounds are made in courses across the undergraduate chemistry curriculum, but student characterization of these compounds' most striking features, their colors, seldom goes beyond verbal descriptions. Affordable, hand-held, fiber-optic reflectance spectrophotometers make it possible to advance students'…
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Color
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Schafer, Adam G.; Yezierski, Ellen J.; Hartley, C. Scott – Journal of Chemical Education, 2019
A laboratory experiment was developed that connects the interpretation of computer-generated models to the self-assembly of macrocycles. Students compare the reactions of terephthalaldehyde and isophthalaldehyde by reacting each with (R,R)-(-)-1,2-diaminocyclohexane. These isomeric systems serve as the foundation for a discussion about the impact…
Descriptors: Undergraduate Students, Thermodynamics, Laboratory Experiments, Comparative Analysis
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Bogucki, Ryan; Greggila, Mary; Mallory, Paul; Feng, Jiansheng; Siman, Kelly; Khakipoor, Banafsheh; King, Hunter; Smith, Adam W. – Journal of Chemical Education, 2019
Low cost, open-source analytical instrumentation has the potential to increase educational outcomes for students and enable large-scale citizen science projects. Many of these instruments rely on smartphones to collect the data, mainly because they can effectively leverage a dramatic price-to-performance ratio of the optical sensors. However,…
Descriptors: Telecommunications, Handheld Devices, Science Instruction, Chemistry
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da Silva, Rodrigo Sens; Borges, Endler Marcel – Journal of Chemical Education, 2019
Here, students determine aspirin (acetylsalicylic acid) mass in pharmaceutical tablets using a colorimetric method. Aspirin, salicylate, and salicylic acid do not absorb visible light. Thus, in alkaline medium, acetylsalicylic acid was hydrolyzed to salicylate; then, it was reacted with an acidic Fe(III) solution, and a violet complex was formed.…
Descriptors: Spreadsheets, Drug Therapy, Light, Chemistry
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