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Haibo Zhang; Qiong Ding; Ruohan Li; Weihong Chen; Peng Wang – Journal of Chemical Education, 2024
Liquid metals are widely applied in various fields, including chemistry, catalysis, energy storage, chemical sensing, and stretchable electronics, due to their unique deformabilities. However, their behavior under a rod or ring electrode has never been analyzed. Furthermore, research on the deformation behavior of eutectic Ga--In (EGaIn), the most…
Descriptors: Metallurgy, Scientific Concepts, Science Experiments, Chemistry
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Daniele Crisafulli; Giulia Savoca; Francesca Mancuso; Martina Mazzaferro; Marco Milone; Ilenia Pisagatti; Anna Notti; Melchiorre F. Parisi; Giuseppe Gattuso – Journal of Chemical Education, 2024
In this two-session experiment for an organic chemistry lab, students prepare a macrocyclic host compound--namely, a pillar[5]arene--by means of a templated 1,4-dimethoxybenzene/formaldehyde cyclo-oligomerization (session 1), and then, they explore its molecular recognition properties toward the 1,8-diaminooctane guest with the aid of [superscript…
Descriptors: Scientific Concepts, Organic Chemistry, Science Experiments, Laboratory Experiments
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Simeen Sattar – Journal of Chemical Education, 2024
Lakes are artists' pigments made from colorants bound to an inert substrate, usually hydrated aluminum oxide. Before the late 19th century, lakes were made from natural pigments extracted from plants and insects, extracted either directly from the dyestuff or indirectly from waste materials generated in the manufacture of dyed textiles. The first…
Descriptors: Color, Science Experiments, Laboratory Experiments, Science Education
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Y. Justin Lim; Brandon Wong; Katie Macfee; Alexa Cueva; E. Aaron Martinez; Cameron Paxton; Robin Barnes; Eric Kleinsasser; Travis J. Williams – Journal of Chemical Education, 2024
Most students enter college without any exposure to polymer science, which leads to the poor understanding and slow implementation of plastic recycling programs in the United States. To address the knowledge gap in chemical recycling, we introduce a 2-part laboratory experiment that was conducted in multiple high schools and public outreach events…
Descriptors: Secondary School Science, Science Experiments, Chemistry, Recycling
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Diederick Maes; Kevin Bevernaege; Kamil Unal; Elias Denijs; Johan M. Winne – Journal of Chemical Education, 2024
An undergraduate laboratory experiment has been developed for the synthesis of a reactive cross-linker that is useful in various highly visual demonstrations of organic reactivity, click chemistry, and biobased polymer synthesis. A triazolinedione-based cross-linker, which is known as a useful reagent for click chemistry, can be obtained from…
Descriptors: Organic Chemistry, Laboratory Experiments, Undergraduate Study, Science Education
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Adrian R. Hilts; Jason Cooke – Journal of Chemical Education, 2023
The addition of a small excess of triethyl orthoformate to an alcoholic mixture of NiCl[subscript 2]·6H[subscript 2]O and triphenylphosphine (PPh[subscript 3]) results in an increase in the typical isolated yield of [NiCl[subscript 2](PPh[subscript 3])[subscript 2]] from below 50% to over 85%. The impact of water when present in the reaction…
Descriptors: College Science, Chemistry, Undergraduate Study, Scientific Concepts
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Masaki Uchida; Candice H. Cortney; Karina Bustos; Elia Manzo; Emily Sauls; Jacob Bouchard; Risako Fukazawa; Viswanathan V. Krishnan – Journal of Chemical Education, 2023
Understanding the basics of d-electron configuration and the spin state of coordination complexes are essential elements of undergraduate inorganic chemistry. However, students in these courses find it difficult to conceptualize the ideas. Here, we have developed an undergraduate laboratory experiment that allows students to systematically…
Descriptors: Undergraduate Study, College Science, Chemistry, Science Education
Julie T. Millard; Ronald F. Peck; Tina M. Beachy; Victoria L. Hepburn – Journal of Chemical Education, 2023
An experiment for the upper-level biochemistry laboratory is described in which students isolate a wild yeast from environmental sources and characterize the strain for its potential in the brewing industry. In addition to providing valuable experience in important biochemical techniques, this study also illustrates key principles of…
Descriptors: Science Experiments, Laboratory Experiments, Biochemistry, Science Education
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Dean J. Campbell; Thomas S. Kuntzleman; Kayla Lippincott; Abe Yassin; Khitab Dar; Q. Ott – Journal of Chemical Education, 2023
The relationship between surface area and dynamics of processes can be demonstrated by adding iron at room temperature to liquid nitrogen. The rate at which the liquid nitrogen boils to produce gas is related to the surface area of the iron. Adding iron in the form of consistent units that have measurable sizes can be readily connected to…
Descriptors: Metallurgy, Mathematical Concepts, Science Education, Scientific Concepts
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Matthew R. Anderson; Cammi J. Dargatz; Tuhina Banerjee; Natasha M. DeVore – Biochemistry and Molecular Biology Education, 2024
Green fluorescent protein has long been a favorite protein for demonstrating protein purification in the biochemistry lab course. The protein's vivid green color helps demonstrate to students the concept(s) behind affinity or ion exchange chromatography. We designed a series of introduction to biochemistry labs utilizing a thermostable green…
Descriptors: Science Education, Biochemistry, Laboratory Experiments, Color
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Sofia F. Palme; Andrew H. Johnson; Graeme R. A. Wyllie – Journal of Chemical Education, 2024
A major challenge when designing new experiments for the general chemistry laboratory is introducing students to the necessary techniques while keeping the experiment engaging and accessible. This work presents a new multiweek activity designed to introduce students to advanced instrumentation in the form of high-performance liquid chromatography…
Descriptors: Chemistry, Science Education, Color, Food
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Chunxiu Xu; Longfei Cai; Zixun Huang – Journal of Chemical Education, 2024
Microfluidic-based ultramicroscale chemistry experiments involve the manipulation and consumption of reagents on a microliter or submicroliter scale in a microfluidic device. This article presents the pedagogical functions of microfluidic systems, including green chemistry education, stimulation of students' interest in learning about chemistry,…
Descriptors: Chemistry, Science Education, Science Experiments, Scientific Concepts
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Abby L. Manning; Bryanna N. Roos; Amber Flynn Charlebois; Kelly Hutchinson-Anderson; Stephen G. Tajc – Journal of Chemical Education, 2023
In an effort to further develop critical thinking and problem solving skills, a guided-inquiry-based, multioutcome organic chemistry synthesis and characterization experiment was developed. Students were provided with the protocol for a time-saving microwave-assisted acetanilide synthesis reaction from acetic anhydride and an unknown primary aryl…
Descriptors: Active Learning, Inquiry, Organic Chemistry, Laboratory Experiments
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Philipp Meyer – Journal of Chemical Education, 2023
Although diffusion is the subject of beginning chemistry classes, there are a variety of experiments, such as the spread of perfume in the classroom, that are often "incorrectly" explained by diffusion alone. To eliminate this common misconception, a recently published method is modified to determine the diffusion constant of hydrogen…
Descriptors: Scientific Concepts, Chemistry, Misconceptions, Science Experiments
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Irzik, Gürol; Nola, Robert – Science & Education, 2023
The family resemblance approach to nature of science is receiving increasing attention by science educators since its inception about a decade ago. Many scholars of science education have contributed and continue to contribute to it not only theoretically but also by applying it empirically to a wide range of areas such as curriculum and textbook…
Descriptors: Scientific Principles, Science Education, Scientific Concepts, Observation
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