NotesFAQContact Us
Collection
Advanced
Search Tips
Showing 16 to 30 of 48,761 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Trinh, Emily H.; Wolff, Anna M.; Naumiec, Gregory R. – Journal of Chemical Education, 2021
Nuclear magnetic resonance (NMR) spectroscopy is the tool of choice for organic chemists to determine the molecular structure of organic molecules and, as a result, is a fundamental topic in the organic chemistry curriculum. A novel laboratory module has been developed to expand the scope of NMR spectroscopy beyond structure validation at the…
Descriptors: Undergraduate Students, Teaching Methods, Spectroscopy, Organic Chemistry
Peer reviewed Peer reviewed
Direct linkDirect link
Mattox, Stephen R.; Duda, Stephanie – Science Teacher, 2022
Permafrost is any soil or surface deposit in an Arctic or alpine region at some depth below the surface at which the temperature has remained below zero degrees Celsius (32 degrees Fahrenheit) continuously for a long period of time. The amount of carbon dioxide and methane stored in permafrost is nearly twice the amount in the atmosphere and, as…
Descriptors: Models, Scientific Concepts, Earth Science, Science Activities
Peer reviewed Peer reviewed
Direct linkDirect link
Agnello, Armélinda; Vanberg, Stéphane; Tonus, Céline; Boigelot, Bernard; Leduc, Laurent; Damblon, Christian; Focant, Jean-François – Journal of Chemical Education, 2020
Performing the identification of organic chemical compounds from a set of spectroscopic data gives the opportunity to students to develop critical thinking and problem-solving skills. In this context, we developed a student-centered methodology for teaching molecular structural analysis to first-year undergraduate students. This systematic…
Descriptors: Organic Chemistry, Science Instruction, Teaching Methods, Critical Thinking
Peer reviewed Peer reviewed
Direct linkDirect link
Cooper, Paul D.; Walser, Jacob – Journal of Chemical Education, 2019
Rovibrational spectroscopy is a fundamental component of most physical chemistry curricula. This article describes an adaption of the rovibrational spectroscopy of carbon dioxide experiment that can be used as a stand-alone experiment or in conjunction with a traditional hydrogen chloride experiment. The case is made that the laboratory…
Descriptors: Chemistry, Spectroscopy, Laboratory Experiments, Learning Experience
Peer reviewed Peer reviewed
Direct linkDirect link
Mirich, Anne; Miller, Trisha Hoette; Klotz, Elsbeth; Mattson, Bruce – Journal of Chemical Education, 2015
Two gas phase deuterium/hydrogen exchange reactions are described utilizing a simple inexpensive glass catalyst tube containing 0.5% Pd on alumina through which gas mixtures can be passed and products collected for analysis. The first of these exchange reactions involves H[subscript 2] + D[subscript 2], which proceeds at temperatures as low as 77…
Descriptors: Science Instruction, Undergraduate Study, College Science, Chemistry
Peer reviewed Peer reviewed
Direct linkDirect link
Pollock, David W.; Truong, Giovanna T.; Bonjour, Jessica L.; Frost, John A. – Journal of Chemical Education, 2018
Solubility is frequently introduced at the high school and introductory college levels through the symbolic domain using net ionic equations and solubility product constants. Students may become proficient with spectator ion cancellation and skilled with algorithmic mathematical applications of solubility without obtaining a deeper understanding…
Descriptors: Spectroscopy, Chemistry, Data Collection, Science Experiments
Peer reviewed Peer reviewed
Direct linkDirect link
Anderson, Shannon Y. C.; Ong, Whitney S. Y.; Momsen, Jennifer L. – Chemistry Education Research and Practice, 2020
Nuclear magnetic resonance (NMR) spectroscopy is vital to synthesis and provides rich problem-solving opportunities to organic chemistry students. Using the theories of scaffolding, interleaving, and blocking, our research systematically explores how textbooks introduce and reinforce spectral features when teaching students to solve [superscript…
Descriptors: Organic Chemistry, Science Instruction, Textbooks, Scaffolding (Teaching Technique)
Peer reviewed Peer reviewed
Direct linkDirect link
Connor, Megan C.; Glass, Benjamin H.; Shultz, Ginger V. – Journal of Chemical Education, 2021
Nuclear magnetic resonance (NMR) spectra are among the most common visualizations used by chemists in both academic and industrial settings, where they serve as both representations of submicroscopic entities and tools that support social discourse. The ability to use words to communicate about features within NMR spectra is thus an essential…
Descriptors: Formative Evaluation, Spectroscopy, Undergraduate Students, Teaching Methods
Peer reviewed Peer reviewed
Direct linkDirect link
Sieg, Philip G.; Berner, William; Harnish, Peter K.; Nelson, Philip C. – Physics Teacher, 2019
Climate is a topic of great concern to students, but it remains difficult to discuss scientifically. We are bombarded daily by emotional messaging for and against the proposition that human activities are altering the climate in ways that may have catastrophic effects. But it often seems that those predictions rest entirely on massive computer…
Descriptors: Physics, Science Instruction, Climate, Environmental Influences
Peer reviewed Peer reviewed
Direct linkDirect link
Bonjour, Jessica L.; Hass, Alisa L.; Pollock, David W.; Huebner, Aaron; Frost, John A. – Journal of Chemical Education, 2017
Development of benchtop, portable Fourier transform nuclear magnetic resonance (NMR) and infrared (IR) spectrometers has opened up opportunities for creating university-high school partnerships that provide high school students with hands-on experience with NMR and IR instruments. With recent changes to the international baccalaureate chemistry…
Descriptors: Organic Chemistry, Spectroscopy, Measurement Equipment, Science Education
Peer reviewed Peer reviewed
Direct linkDirect link
Herrmann, Kayleigh M.; Murnane, Robert; Brucoli, Federico – Journal of Chemical Education, 2021
This undergraduate dissertation project was designed to enhance organic and analytical chemistry skills of final year forensic science students. A modified Birch reaction method was employed to synthesize amphetamine from ephedrine and detect the most known byproduct of clandestine manufacture of amphetamines, e.g.,…
Descriptors: Crime, Theses, Undergraduate Students, Chemistry
Peer reviewed Peer reviewed
Direct linkDirect link
Pan, Yi; Li, Yue Ru; Zhao, Yu; Akins, Daniel L. – Journal of Chemical Education, 2015
A research project for senior undergraduates of chemistry has been developed to introduce syntheses of a series of monodispersed semiconductor PbS quantum dots (QDs) and their characterization methodologies. In this paper, we report the preparation of monodispersed semiconductor PbS QDs with sizes smaller than the exciton Bohr radius using a…
Descriptors: Synthesis, Quantum Mechanics, Case Studies, Undergraduate Students
Peer reviewed Peer reviewed
Direct linkDirect link
Wolf, Mark E.; Norris, J. Widener; Fynewever, Herb; Turney, Justin M.; Schaefer, Henry F., III – Journal of Chemical Education, 2022
Over the past half century, computational chemistry has evolved from a niche field to a ubiquitous pillar of modern chemical research. Driven by the increased demand for computational chemistry in research settings, the undergraduate curriculum has evolved alongside to ensure that students are well-equipped for modern research. Toward this end,…
Descriptors: Science Instruction, Science Laboratories, Chemistry, Computer Simulation
Peer reviewed Peer reviewed
Direct linkDirect link
Li, Yunhua; Chen, Cuixue; Ye, Meiling; Imbault, Alexander Luis – Journal of Chemical Education, 2022
Organizing undergraduates in chemistry, energy engineering, and chemical engineering specialties to participate in an energy transformation experiment can encourage them to think about the impact of human activities on nature and stimulate them to learn more about the topic. This laboratory experiment demonstrates a general approach to the…
Descriptors: Hands on Science, Fuels, Energy, Chemical Engineering
Peer reviewed Peer reviewed
Direct linkDirect link
Mann, Patrick Bergstrom; Clark, Samuel; Cahill, Samuel T.; Campbell, Craig D.; Harris, Matthew T.; Hibble, Simon; To, Trang; Worrall, Andrew; Stewart, Malcolm – Journal of Chemical Education, 2019
Earth's field nuclear magnetic resonance (EFNMR) spectroscopy offers students a unique opportunity to consolidate their understanding of NMR spectroscopic theory through hands-on practice with a simple spectrometer. A comprehensive, 6 h experiment is presented for the introduction of low-field NMR techniques, covering spectroscopy, relaxivity, and…
Descriptors: Chemistry, Science Instruction, College Science, Undergraduate Study
Pages: 1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  10  |  11  |  ...  |  3251