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Singhal, Ishu; Balaji, B. S. – Journal of Chemical Education, 2020
An open-source repository of basic building block models design files for writing chemical formulas, equations, and ionic states are provided. Writing chemical symbols, molecules, and ions in their correct oxidation state or valency in chemical equations is an essential and integral part of learning. For a visually impaired student, it is very…
Descriptors: Chemistry, Science Education, Nuclear Physics, Molecular Structure
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Kondinski, Aleksandar; Moons, Jens; Zhang, Yujie; Bussé, Jakob; De Borggraeve, Wim; Nies, Erik; Parac-Vogt, Tatjana N. – Journal of Chemical Education, 2020
Single-type, 6-fold symmetrically grooved, and commercially accessible interlocking disks (ILDs) have been used for modeling of sp[superscript 2] hybridized carbon-based nanoarchitectures and complex polyhedral and reticular material models. In the case of the carbon-based nanoarchitectures, we showcase that the primary ILDs can be directly used…
Descriptors: Science Instruction, Inorganic Chemistry, Hands on Science, Molecular Structure
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Fatemah, Amal; Rasool, Shahzad; Habib, Uzma – Journal of Chemical Education, 2020
Students undertaking courses in the field of chemistry need to integrate their spatial skills and conceptual knowledge. However, model perception along with the understanding of spatial processes and spatial structures of molecules has been a cause of difficulty for students as conventional teaching methods cannot fully aid student comprehension.…
Descriptors: Chemistry, Telecommunications, Handheld Devices, Spatial Ability
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Sakamaki, Yoshie; Tsuji, Miu; Heidrick, Zachary; Watson, Olivia; Durchman, Jeremy; Salmon, Christopher; Burgin, Stephen R.; Beyzavi, M. Hassan – Journal of Chemical Education, 2020
The chemistry of metal-organic frameworks (MOFs), a new class of emerging crystalline porous solids with three-dimensional (3D) networks composed of metals and multidentate organic molecules, was introduced by using three differently shaped crystals. We reported new and mild MOF synthesis methods that are simple and devised to be performed in high…
Descriptors: Organic Chemistry, Undergraduate Students, Science Instruction, Teaching Methods
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Li, Zihao; Ganda, Sylvia; Melodia, Daniele; Boyer, Cyrille; Chapman, Robert – Journal of Chemical Education, 2020
We present the use of an oxygen tolerant controlled radical polymerization (photoinduced electron/energy transfer-reversible addition fragmentation chain transfer polymerization, PET-RAFT) as a simple method for preparing controlled radical polymers in an undergraduate laboratory. Unlike conventional techniques, PET-RAFT polymerizations require no…
Descriptors: Science Instruction, Science Laboratories, College Science, Undergraduate Study
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Stepek, Iain A.; Hofmann, Raphael; Nichols, Paula L.; Aschwanden, Andrea; Eckard, Christophe; Aschwanden, Patrick; Bode, Jeffrey W. – Journal of Chemical Education, 2020
Despite the importance of organic chemistry to human health and quality of life, very few outreach programs have been successful in communicating this message. This contributes to negative public perceptions of organic chemistry and obscures the enormous advances in quality of life engendered by organic synthesis. New chemical outreach programs…
Descriptors: Organic Chemistry, Science Instruction, Secondary School Science, High School Students
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Chen, Zhenhua – Journal of Chemical Education, 2020
In this paper, we develop a general but very simple mathematical foundation for the predefined coefficient graphical method of Hückel molecular orbital theory (HMO). We first present the general solution for the recurrence relation of the coefficients of Hückel molecular orbitals (MOs). Subsequently, for all the three unbranched hydrocarbons,…
Descriptors: Chemistry, Molecular Structure, Energy, Mathematics
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Marsiglia, William M.; Qamra, Rohini; Jackson, Kimberly M.; Traaseth, Nathaniel J. – Journal of Chemical Education, 2020
The design of undergraduate laboratory courses that provide meaningful research-based experiences enhances undergraduate curricula and prepares future graduate students for research careers. In this article, a course-based undergraduate research experience (CURE) laboratory module was designed for upper-division undergraduate biochemistry and…
Descriptors: Biochemistry, Science Instruction, College Science, Student Research
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Jung, Jiyoung; Dinescu, Adriana; Kukrek, Ahmet – Journal of Chemical Education, 2020
Recently, researchers have paid extensive attention to colorimetric/fluorimetric probe development and its applications in biological and industrial samples. The actual development of such probe molecules, however, often requires an iterative process to achieve certain goals such as selectivity and sensitivity toward a target analyte. In spite of…
Descriptors: College Science, Science Instruction, Chemistry, Kinetics
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Reid, Scott A. – Journal of Chemical Education, 2020
Many STEM (science, technology, engineering, and mathematics) disciplines require a two-semester sequence of introductory college chemistry, which are thus critical gateway courses to a variety of majors. Recognizing the benefit to educators of a structure of content learning across the chemistry curriculum, in 2012, the American Chemical Society…
Descriptors: Science Instruction, College Science, STEM Education, Chemistry
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Lisensky, George; McFarland-Porter, Ross; Paquin, Weltha; Liu, Kangying – Journal of Chemical Education, 2020
Nanoparticle Zn[subscript 2x] Cu[subscript 1-x] In[subscript 1-x] S[subscript 2] is a promising and safer alternative to lead- and cadmium-containing quantum dots. Students prepare Zn[subscript 0.44] Cu[subscript 0.78] In[subscript 0.78] S[subscript 2] quantum dots in a one-pot synthesis without an inert atmosphere and investigate how the color,…
Descriptors: Science Instruction, Chemistry, Metallurgy, Molecular Structure
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Garrido, Neil; Pitto-Barry, Anaïs; Soldevila-Barreda, Joan J.; Lupan, Alexandru; Comerford Boyes, Louise; Martin, William H. C.; Barry, Nicolas P. E. – Journal of Chemical Education, 2020
The abstract nature of physical chemistry and spectroscopy makes the subject difficult to comprehend for many students. However, bridging arts and science has the potential to provide innovative learning methods and to facilitate the understanding of abstract concepts. Herein, we present a high-school project based on the conversion of selected…
Descriptors: Chemistry, Spectroscopy, Science Instruction, Acoustics
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Perera, Y. Randika; South, Taylor M.; Hughes, Alex C.; Parkhurst, Ashlyn N.; Williams, Olivia C.; Davidson, Mackenzie B.; Wilks, Chloe A.; Mlsna, Debra A.; Fitzkee, Nicholas C. – Journal of Chemical Education, 2020
A simple one-dimensional [superscript 1]H NMR experiment that quantifies protein bound to gold nanoparticles has been developed for upper-division biochemistry and physical chemistry students. This laboratory experiment teaches the basics of NMR techniques, which is a highly effective tool in protein studies and supports students to understand the…
Descriptors: Teaching Methods, Spectroscopy, Science Instruction, Laboratory Experiments
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Green, Travis C.; Gresh, Rebekkah H.; Cochran, Desiree A.; Crobar, Kaitlyn A.; Blass, Peter M.; Ostrowski, Alexis D.; Campbell, Dean J.; Xie, Charles; Torelli, Andrew T. – Journal of Chemical Education, 2020
Infrared (IR) thermography renders invisible infrared radiation with intuitive coloration in images and videos taken of objects, reactions, and processes. Educators can take advantage of this technology to extend students' sensory perception of chemical reactions or processes that absorb or release heat in rich detail. In theory, IR thermography…
Descriptors: Chemistry, Science Instruction, College Science, Science Laboratories
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Lisensky, George; Dauzvardis, Fabian; Luo, Jiaqi; Horger, Jacob; Koenig, Emma – Journal of Chemical Education, 2020
Polymers and nanochemistry are important facets of chemistry. In this experiment, students synthesize monodispersed poly(methyl methacrylate) nanospheres from the addition or chain polymerization of a rapidly stirred aqueous mini-emulsion of methyl methacrylate. The 2,2'-azobis(2-methylpropionamidine) dihydrochloride serves as a heat activated,…
Descriptors: Science Instruction, Chemistry, Scientific Concepts, Molecular Structure
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