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Showing 1 to 15 of 97 results Save | Export
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Sunil Dehipawala; Tak Cheung – International Society for Technology, Education, and Science, 2024
The education science (or pedagogy based on scientific principles) of the learning of spectroscopy analysis in terms of critical thinking was examined in a community college setting with high school outreach and senor college transfer students enrolling in courses and/or projects. The most important discovery of science in the 20th Century was the…
Descriptors: Spectroscopy, Critical Thinking, Community Colleges, Science Instruction
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Cortney, Candice H.; Krishnan, V. V. – Journal of Chemical Education, 2020
Keto-enol tautomerism is a fundamental concept that examines the migration of a proton between two constitutional isomers, the keto and enol tautomer. Many experiments have been proposed to understand the concept behind Meyer's Rule, which states that the keto tautomer is favored as the solvent polarity increases. However, all the experiments have…
Descriptors: Physics, Chemistry, Thermodynamics, Spectroscopy
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Davide Revignas; Vincenzo Amendola – Journal of Chemical Education, 2022
Nowadays, technologies involving nanoparticles, colloids, sensors, and artificial intelligence are widespread in society, media, and industry. It is thus mandatory to integrate them into the curricula of students enrolled in chemistry and materials science. To this purpose, we designed a simple assay for the detection of glutathione (GSH) using…
Descriptors: Spectroscopy, Science Education, College Science, Optics
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Onorato, Pasquale; Gratton, Luigi; Malgieri, Massimiliano; Oss, Stefano – Physics Education, 2017
The lifetimes of the photoluminescent compounds contained in the coating of fluorescent compact lamps are usually measured using specialised instruments, including pulsed lasers and/or spectrofluorometers. Here we discuss how some low cost apparatuses, based on the use of either sensors for the educational lab or commercial digital photo cameras,…
Descriptors: Science Instruction, Light, Physics, Science Experiments
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Larsen, Molly C.; Perkins, Russell J. – Journal of Chemical Education, 2016
A low-cost, time-resolved spectroscopy experiment appropriate for third year physical chemistry students is presented. Students excite o-methyl red in basic solutions with a laser pointer and use a modular spectrometer with a CCD array detector to monitor the transient spectra as the higher-energy cis conformer of the molecule converts back to the…
Descriptors: Undergraduate Students, Chemistry, Physics, Science Laboratories
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Piard, Jonathan – Journal of Chemical Education, 2014
The solvent influence on the absorption spectra and the kinetics of the back reaction of the 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro(2H-1-benzopyran-2,2'-2H-indole) (6-NO2-BIPS) has been investigated by means of temperature-controlled, UV-visible spectroscopic measurements. The back reaction process was proved to follow first-order kinetics…
Descriptors: Chemistry, Physics, Kinetics, Science Experiments
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Mack Shelley, Editor; Ozkan Akman, Editor; Sabri Turgut, Editor – International Society for Technology, Education, and Science, 2024
"Proceedings of International Conference on Humanities, Social and Education Sciences" includes full papers presented at the International Conference on Humanities, Social and Education Sciences (iHSES) which took place on April 16-19, 2024, in San Francisco, California, United States of America. The aim of the conference is to offer…
Descriptors: Computer Uses in Education, Artificial Intelligence, Lifelong Learning, Community College Students
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Ghosh, Supriya; Dixit, Mayank Kumar; Bhattacharyya, S. P.; Tembe, B. L. – Journal of Chemical Education, 2013
Franck-Condon factors (FCFs) play a crucial role in determining the intensities of the vibrational bands in electronic transitions. In this article, a relatively simple method to calculate the FCFs is illustrated. An algorithm for the Fourier Grid Hamiltonian (FGH) method for computing the vibrational wave functions and the corresponding energy…
Descriptors: Computation, Mathematics, Electronics, Energy
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Bertel, Erminald – European Journal of Physics Education, 2013
Due to progress in nanotechnology high-quality quantum wires can nowadays be fabricated. The behavior of particles in one dimension differs significantly from that in three-dimensional (3D) systems, yet the physics of such low-dimensional systems is generally not very well represented in standard undergraduate or graduate curricula. For instance,…
Descriptors: Science Instruction, Physics, Scientific Concepts, Scientific Principles
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Al-Azmi, Darwish; Karunakara, N.; Mustapha, Amidu O. – Physics Education, 2013
Ambient gamma dose rates in air were measured at different locations (indoors and outdoors) to demonstrate the ubiquitous nature of natural background radiation in the environment and to show that levels vary from one location to another, depending on the underlying geology. The effect of a lead shield on a gamma radiation field was also…
Descriptors: Radiation, Science Instruction, Measurement, Geology
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Gagnon, Michel – Physics Teacher, 2012
Introduced to study components of ionized gas, the mass spectrometer has evolved into a highly accurate device now used in many undergraduate and research laboratories. Unfortunately, despite their importance in the formation of future scientists, mass spectrometers remain beyond the financial reach of many high schools and colleges. As a result,…
Descriptors: Simulation, Science Laboratories, Computer Software, Spectroscopy
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Kraftmakher, Yaakov – Physics Education, 2012
The use of a video camera may markedly improve demonstrations of optical spectra. First, the output electrical signal from the camera, which provides full information about a picture to be transmitted, can be used for observing the radiant power spectrum on the screen of a common oscilloscope. Second, increasing the magnification by the camera…
Descriptors: Chemistry, Video Technology, Videotape Recorders, Photography
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Albert, Daniel R.; Todt, Michael A.; Davis, H. Floyd – Journal of Chemical Education, 2012
In an effort to make absorption spectrophotometry available to high school chemistry and physics classes, we have designed an inexpensive visible light absorption spectrophotometer. The spectrophotometer was constructed using LEGO blocks, a light emitting diode, optical elements (including a lens), a slide-mounted diffraction grating, and a…
Descriptors: Physics, Chemistry, Laboratory Equipment, Spectroscopy
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Pezzolo, Alessandra De Lorenzi – Journal of Chemical Education, 2011
In this experiment, students are given a fanciful application of the standard addition method to evaluate the approximate quantity of the shell component in a sample of sand collected on the Lido di Venezia seashore. Several diffuse reflectance infrared Fourier transform (DRIFT) spectra are recorded from a sand sample before and after addition of…
Descriptors: Science Experiments, Science Activities, Spectroscopy, Measurement
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Sattar, Simeen – Journal of Chemical Education, 2011
Tris(1,10-phenanthroline)iron(II) is the basis of a suite of four experiments spanning 5 weeks. Students determine the rate law, activation energy, and equilibrium constant for the dissociation of the complex ion in acid solution and base dissociation constant for phenanthroline. The focus on one chemical system simplifies a daunting set of…
Descriptors: College Freshmen, College Science, Chemistry, Physics
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