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Direct linkLanghals, Heinz; Eberspa¨cher, Moritz; Hofer, Alexander – Journal of Chemical Education, 2015
The synthesis of nanomicelles in the aqueous phase on the basis of nonhazardous detergents is described where azulene and a naphthalene tetracarboximide are used in this experiment to teach the relation between structural and optical properties of organic compounds and point out possible applications. The experiment covers many aspects of…
Descriptors: Organic Chemistry, Synthesis, Undergraduate Students, Science Experiments
Rodrigues, Catarina A. B.; Martinho, Jose´ M. G.; Afonso, Carlos A. M. – Journal of Chemical Education, 2015
The synthesis of (Z)-4-(4-nitrobenzylidene)-2- phenyloxazol-5(4"H")-one, which is a potent immunomodulator and tyrosinase inhibitor, is described as an experiment for an upper-division undergraduate organic chemistry laboratory course. This compound is produced via an Erlenmeyer-Plo¨chl reaction in the absence of any additional solvents…
Descriptors: Organic Chemistry, Hands on Science, College Science, Undergraduate Study
Smith, K. Christopher; Garza, Ariana – Journal of Chemical Education, 2015
This paper describes a student designed experiment using titrations involving conductivity measurements to identify unknown acids as being either HCl or H[subscript 2]SO[subscript 4], and to determine the concentrations of the acids, thereby improving the utility of standard acid-base titrations. Using an inquiry context, students gain experience…
Descriptors: Chemistry, Measurement, Inquiry, Active Learning
Mäntylä, Terhi; Hämäläinen, Ari – Science & Education, 2015
The language of physics is mathematics, and physics ideas, laws and models describing phenomena are usually represented in mathematical form. Therefore, an understanding of how to navigate between phenomena and the models representing them in mathematical form is important for a physics teacher so that the teacher can make physics understandable…
Descriptors: Physics, Science Instruction, Mathematics, Scientific Principles
Mendes, De´bora C.; Ramamurthy, Vaidhyanathan; Da Silva, Jose´ P. – Journal of Chemical Education, 2015
In this laboratory experiment, students follow a step-by-step procedure to prepare and study guest-host complexes in the gas phase using electrospray ionization-mass spectrometry (ESI-MS). Model systems are the complexes of hosts cucurbit[7]uril (CB7) and cucurbit[8]uril (CB8) with the guest 4-styrylpyridine (SP). Aqueous solutions of CB7 or CB8…
Descriptors: Science Instruction, Spectroscopy, Laboratory Experiments, Science Experiments
Hoffman, Gary G. – Journal of Chemical Education, 2015
A computational laboratory experiment is described, which involves the advanced study of an atomic system. The students use concepts and techniques typically covered in a physical chemistry course but extend those concepts and techniques to more complex situations. The students get a chance to explore the study of atomic states and perform…
Descriptors: Science Instruction, College Science, Undergraduate Study, Chemistry
Pe´rez, Eduardo – Journal of Chemical Education, 2015
The procedure of a physical chemistry experiment for university students must be designed in a way that the accuracy and precision of the measurements is properly maintained. However, in many cases, that requires costly and sophisticated equipment not readily available in developing countries. A simple, low-cost experiment to determine isobaric…
Descriptors: Chemistry, Science Experiments, College Science, Science Instruction
Hein, Sara M.; Kopitzke, Robert W.; Nalli, Thomas W.; Esselman, Brian J.; Hill, Nicholas J. – Journal of Chemical Education, 2015
A discovery-based Grignard experiment for a second-year undergraduate organic chemistry course is described. The exclusive Grignard reagent formed by the reaction of 1-bromo-4-fluorobenzene (1) with Mg is 4-fluorophenylmagnesium bromide (2), which is treated with either benzophenone or CO[subscript 2] to produce the corresponding fluorinated…
Descriptors: Science Instruction, Spectroscopy, Scientific Concepts, College Science
Kurteva, Vanya B.; Petrova, Maria A. – Journal of Chemical Education, 2015
In this laboratory experiment, students synthesize 3-methyl-4-(4-methylbenzoyl)-1-phenyl-pyrazol-5-one by selective C-acylation of 3-methyl-1-phenyl-1H-pyrazol-5-one. Calcium hydroxide is used to push the tautomeric equilibrium toward the enol form, to protect the hydroxyl functionality as a complex, to trap the liberated hydrogen chloride, and to…
Descriptors: Science Instruction, Science Experiments, Laboratory Experiments, Science Laboratories
Potteiger, Sara E.; Belanger, Julie M. – Journal of Chemical Education, 2015
This inquiry-based experiment is designed for organic or biochemistry undergraduate students to deduce the identity of phospholipids extracted from chicken eggs and dietary supplements. This is achieved using thin-layer chromatography (TLC) data, a series of guided questions of increasing complexity, and provided relative retention factor (Rf)…
Descriptors: Inquiry, Active Learning, Science Experiments, Organic Chemistry
Pather, Nalini; Blyth, Phil; Chapman, Jamie A.; Dayal, Manisha R.; Flack, Natasha A.M.S.; Fogg, Quentin A.; Green, Rodney A.; Hulme, Anneliese K.; Johnson, Ian P.; Meyer, Amanda J.; Morley, John W.; Shortland, Peter J.; Štrkalj, Goran; Štrkalj, Mirjana; Valter, Krisztina; Webb, Alexandra L.; Woodley, Stephanie J.; Lazarus, Michelle D. – Anatomical Sciences Education, 2020
Australian and New Zealand universities commenced a new academic year in February/March 2020 largely with "business as usual." The subsequent Covid-19 pandemic imposed unexpected disruptions to anatomical educational practice. Rapid change occurred due to government-imposed physical distancing regulations from March 2020 that…
Descriptors: Anatomy, Science Instruction, Educational Practices, Disease Incidence
Brom, Joseph M. – Journal of Chemical Education, 2017
The concept of wave-particle duality in quantum theory is difficult to grasp because it attributes particle-like properties to classical waves and wave-like properties to classical particles. There seems to be an inconsistency involved with the notion that particle-like or wave-like attributes depend on how you look at an entity. The concept comes…
Descriptors: Chemistry, Science Instruction, Measurement Techniques, Scientific Concepts
Kimaru, Irene; Koether, Marina; Chichester, Kimberly; Eaton, Lafayette – Journal of Chemical Education, 2017
Analytical method transfer (AMT) and dissolution testing are important topics required in industry that should be taught in analytical chemistry courses. Undergraduate students in senior level analytical chemistry laboratory courses at Kennesaw State University (KSU) and St. John Fisher College (SJFC) participated in development, validation, and…
Descriptors: Chemistry, Undergraduate Students, College Science, Science Instruction
Download full textGiorgis, Scott; Mahlen, Nancy; Anne, Kirk – Journal of Geoscience Education, 2017
The augmented reality (AR) sandbox bridges the gap between two-dimensional (2D) and three-dimensional (3D) visualization by projecting a digital topographic map onto a sandbox landscape. As the landscape is altered, the map dynamically adjusts, providing an opportunity to discover how to read topographic maps. We tested the hypothesis that the AR…
Descriptors: Introductory Courses, Earth Science, Nonmajors, Topography
Dounas-Frazer, Dimitri R.; Stanley, Jacob T.; Lewandowski, H. J. – Physical Review Physics Education Research, 2017
We investigate students' sense of ownership of multiweek final projects in an upper-division optics lab course. Using a multiple case study approach, we describe three student projects in detail. Within-case analyses focused on identifying key issues in each project, and constructing chronological descriptions of those events. Cross-case analysis…
Descriptors: Case Studies, Laboratory Experiments, Optics, Mentors
