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Direct linkGriselda L. Sosa; Guido E. Deluchi; Silvana A. Rami´rez; Mariana Hamer – Journal of Chemical Education, 2023
Understanding potentiometry is a difficult task when students in initial courses of Analytical Chemistry are first introduced to instrumental techniques. The closest instrument to them is a pH meter, which is frequently used as a "black box", without a real understanding of how it works. Here we present the assembly of jelly modules that…
Descriptors: Chemistry, Science Laboratories, Engineering, Hands on Science
Abu Hannifa Abdullah; Ashwin Charles; Zulhelmi Ismail – Journal of Chemical Education, 2023
Recently, smart sensing/actuation paper has attracted significant interest due to its potential usage as a sustainable component in future electronics, robotics, and intelligent sensing devices. In acknowledging the importance of this topic for the engagement of students at the university level in conjunction with Industrial Revolution 4.0, it is…
Descriptors: Chemistry, Science Experiments, Scientific Concepts, Electronics
Download full textHal Van Ryswyk; Hanna Z. Porter; Connor K. M. Seto; Ixchel Lopez; Emma Dy – Journal of Chemical Education, 2023
Pulsed field gradient nuclear magnetic resonance (NMR) is used to estimate the size of quantum dots (QDs) produced in a simple, fast, small-scale synthesis. This upper-division laboratory experiment teaches the basics of QD synthesis and pulsed field gradient NMR, a powerful technique for measuring diffusion coefficients in solution. The diffusion…
Descriptors: Chemistry, Science Instruction, Scientific Concepts, Nuclear Energy
Jovica Todorov; Gregory S. McCarty; Leslie A. Sombers – Journal of Chemical Education, 2023
There is an increasing need for fundamental electrochemistry concepts to be taught in the undergraduate curriculum, given the broad applicability of electrochemical technologies in addressing a wide range of global issues from critical energy shortages to real-time medical diagnostics. However, many electrochemical concepts are often taught in…
Descriptors: Chemistry, Color, Undergraduate Study, College Science
Vincent A. Sichula – Journal of Chemical Education, 2023
A multistep synthesis of a metal-free organic dye-sensitizer for solar cells was developed as a multifaceted research project for upper-division undergraduate students with a goal of introducing students to the application of organic synthesis in material science, and renewable energy research. The characterization of the dye is done by thin-layer…
Descriptors: Organic Chemistry, Laboratory Experiments, Science Instruction, Student Research
Marisa Freitas; Carina Proenc¸a; Daniela Ribeiro; Maria Beatriz Quinaz-Garcia; Alberto N. Arau´jo; Eduarda Fernandes – Journal of Chemical Education, 2023
Enzymes, enzymatic kinetics, and enzyme inhibition are topics covered in undergraduate biochemistry textbooks, having perceptible relevance to everyday life. The experimental use of enzymes involved in basic physiologic processes may be of utmost pedagogic interest because they bring evidence on how a significant number of drugs are used to…
Descriptors: Biochemistry, Undergraduate Study, Laboratory Experiments, Science Instruction
Wesley C. Sanders; Ron Valcarce; Peter Iles; Glen Johnson; Spencer Ashworth; Aaron Barnett; Hardin Beaudry; Hayden Duffin; Hunter Fourt; Ezekial Curran; Nolan Chandler Turner; Kasielynn Bussard; Mariana Euan; Nickeles Hunter – Journal of Chemical Education, 2023
This manuscript describes a laboratory exercise that allows students to use conductive atomic force microscopy (CAFM) for the analysis of electrodeposited, metallic structures. In addition to nanoscale electrical characterization with CAFM, this laboratory exercise also provides students with an opportunity to explore nanofabrication by…
Descriptors: Science Instruction, Science Laboratories, Measurement, Laboratory Equipment
John G. D'Angelo – Journal of Chemical Education, 2023
In recent years, course-based undergraduate research experiences (CUREs) have been increasing in popularity as replacements for or adjuvants to the traditional laboratory experience. This approach shifts the focus from an exercise-based curriculum to an experiment-based curriculum and provides students with a more authentic and higher-impact…
Descriptors: Undergraduate Students, Student Research, Student Experience, Laboratory Experiments
Yu Liu; Alec S. Lininger; Lauren N. McCaskey; Rachel M. Thomas – Journal of Chemical Education, 2023
A new organic chemistry experiment aimed to separate the chlorophyll precursor in plant seeds by column chromatography is described. The primary pedagogical goal in developing this experiment is to establish a simple and interesting chromatographic separation to demonstrate basic concepts and the standard procedure for this important lab…
Descriptors: Organic Chemistry, Color, Plants (Botany), Science Experiments
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
Faville, Scott C.; Harris-Hamdscomb, Kes; Harker, Owain; Mattison, Stephanie; Tamorite, Hajie; Bristowe, Joshua; Daly, Daniel; Ege, Raissa; He, Haoyuan; Jones, Julian; McCorkindale, Abby; Mei, Kerry; Monson, Ashleigh; Moree, Lana; Perkovic, Finley; Rickerby, Georgia; Robinson, Jack; Rudkin, Felix; Whibley, Luke; Worthington, Rebecca; Ennis, Courtney; de la Harpe, Sara; Brind, Thomasin; Hopkins, Andrew; Winefield, Kaleb; Hendrickx, Sarah; Caljon, Guy; Perry, Benjamin; Vernall, Andrea J. – Journal of Chemical Education, 2022
An undergraduate laboratory was developed as part of the Drugs for Neglected Diseases "initiative's" Open Synthesis Network. This activity aimed to develop new compounds efficacious against visceral leishmaniasis. Students successfully synthesized, purified, and characterized ten different benzoxazole amides that were sent for biological…
Descriptors: College Science, Undergraduate Students, Laboratory Experiments, Diseases
Moya, Antonio Angel – Physics Teacher, 2022
Resistor--capacitor (RC) circuit labs help students, but most courses don't include them because of complications and cost. This work presents an easy and inexpensive Arduino-based lab on the charge and energy transfer between two capacitors with different values of the initial electric charge when they are connected through a resistor. Capacitors…
Descriptors: Physics, Science Instruction, Teaching Methods, Energy
Martin Rozman; Mojca Alif; Urban Bren; Miha Luksic – Journal of Chemical Education, 2022
Electrochromism encompasses reversible changes of material's optical properties (color, opacity) under the influence of an external electric current or applied voltage. The effect has been known for decades, but its importance continues to grow due to the rapid development of smart systems and the accompanying demand to build devices that consume…
Descriptors: Chemistry, Science Instruction, Electronics, Color
Rachel D. Davidson; Thomas E. O'Loughlin; Theodore E. G. Alivio; Soon-Mi Lim; Sarbajit Banerjee – Journal of Chemical Education, 2022
In this laboratory experiment, students modify a series of surfaces and explore the effects of varying surface chemistry and texture on wettability by different probe liquids. Students begin by building a simple contact angle goniometer utilizing their mobile phone cameras. Next, they contrast the wettability of planar glass substrates…
Descriptors: Science Instruction, Science Experiments, Laboratory Experiments, Telecommunications
Patrick I. T. Thomson; Paul Lamie – Journal of Chemical Education, 2022
This work further implements the "elements of inquiry" approach in a first-year undergraduate laboratory course, in a two-part inquiry sequence. In the first part of the sequence, students iteratively develop a "best-practice" TLC procedure. In the second part, students iteratively optimize a simple organic reaction using TLC,…
Descriptors: Inquiry, Research Design, Undergraduate Study, Laboratory Experiments
