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Zvart Ajoyan; Christopher Copeman; Hudson A. Bicalho; Jean-Louis Do; Tiffany Te; Jennifer Romero; Ashlee J. Howarth – Journal of Chemical Education, 2023
Metal-organic frameworks (MOFs) are a class of porous materials that are often crystalline with high surface area and structural tunability. In this laboratory experiment designed for inorganic chemistry students at the undergraduate level, students complete a two-step experiment where they will first (i) synthesize two isostructural…
Descriptors: Undergraduate Study, Laboratory Experiments, Science Instruction, Chemistry
Maria Cerrato-Alvarez; Samuel Frutos-Puerto; Eduardo Pinilla-Gil – Journal of Chemical Education, 2024
Calculating analytical uncertainties as a part of method validation is a relevant aspect of field and laboratory practices in instrumental analytical chemistry subjects, which usually require complex algorithms. This work describes the development and didactic use of an automatic and straightforward informatics tool, implemented in an Excel macro,…
Descriptors: Computation, Computer Software, Teaching Methods, Knowledge Level
Sobiya Khursheed; Zahid Hussain; Aasiya Gul; Muhammad Aabid Shah; Afzal Hussain; Mohamed F. Alajmi; Prince Firdoos Iqbal; Nusrat Rashid; Rayees Ahmad Shiekh; Jahangir Ahmad Rather; Akhtar Hussain Malik; Waseem A. Wani – Journal of Chemical Education, 2024
Titration is an important experimental skill that every chemistry educator and learner must master. Titration is often the method of choice in the science laboratory courses in secondary and postsecondary schools. During acid-base titration, chemistry learners are always told about salt formation. However, a practical visualization of the salt…
Descriptors: Secondary School Science, Secondary School Students, Undergraduate Students, Chemistry
Daniela De Luchi; Renato Bonomi – Journal of Chemical Education, 2023
Scientists have always been fascinated by transient far-from-equilibrium systems. Since the (early) 1970s, there have been literature reports on the implementation of didactic experiments as a tool for attracting and stimulating students' and general public interest. In this work, a group of 12 high school students, supported by their chemistry…
Descriptors: Scientific Concepts, Science Instruction, Science Experiments, Teaching Methods
Yulin Guo; Lin Wang; Jinyan Hou; Min Fang; Xiaofeng Chen; Jianchun Bao; Zhi Su; Yong Wu – Journal of Chemical Education, 2023
A Maker-oriented experimental course in general chemistry has been created by using digital tools, such as a computer, a pressure sensor, and data processing software, in combination with a new multiple expansion method and laboratory equipment to determine the vapor pressure precisely. In this Maker chemistry experiment, the pressure sensor…
Descriptors: Chemistry, Science Instruction, Teaching Methods, Laboratory Experiments
Da-Zhi Tan; Ming-Ze Li; Wan-nan Xiong; Yi-Xuan Xu; Yang Pan; Wen-Jie Fan; Wen-Feng Jiang – Journal of Chemical Education, 2023
The preparation of ethyl acetoacetate is a distinctive, century-old classic organic chemistry laboratory project. Ethyl acetate and sodium metal (sodium ethoxide) are reacted by Claisen ester condensation to produce the sodium salt of ethyl acetoacetate and then obtain the refined product by acidification as well as washing, drying, and…
Descriptors: Chemistry, Science Experiments, Improvement, Science Instruction
Lianwen Zhu – Journal of Chemical Education, 2024
A chemistry laboratory experiment is described to introduce undergraduate college students to membrane separation technology. This experiment combines a simple nanowire membrane fabrication and visually indicated molecule separation. The membrane is produced via coprecipitation synthesis followed by a filtration assembly process, which can be…
Descriptors: Chemistry, Science Instruction, Laboratory Experiments, Undergraduate Students
Kimberley A. Frederick; Amanda S. Harper-Leatherman – Journal of Chemical Education, 2022
The process of method development is at the heart of analytical chemistry, yet direct experimental experience with the process is rarely taught in the undergraduate laboratory. We report here an experiment that uses rapid, safe, and inexpensive paper-based microfluidics with cell phone detection in order to facilitate the development of a…
Descriptors: Active Learning, Inquiry, In Person Learning, Distance Education
Schmidt, Jonas; Huber, Tim; Mu¨ssig, Jo¨rg – Journal of Chemical Education, 2022
The knowledge of the mechanical properties of polymers and other materials is essential for several tasks in the field of materials science, like component design and material development. The tensile test is one method of determining many of the material's most defining mechanical characteristics. However, the teaching of laboratory experiments…
Descriptors: Science Instruction, Teaching Methods, Science Experiments, Laboratory Experiments
Slonecker, Patrick; Vonderheide, Anne P. – Journal of Chemical Education, 2022
The use of mass spectrometry (MS) is becoming widespread and rather routine in all levels of industry, government, and academia. Coupled with chromatographic methods, this powerful instrumental technique can be used to elucidate the composition of a complex sample and definitively identify constituents while offering the benefits of high-precision…
Descriptors: Chemistry, Science Instruction, Teaching Methods, Undergraduate Students
Chattopadhyay, Purnesh; Wang, Linlin; Eychmu¨ller, Alexander; Simmchen, Juliane – Journal of Chemical Education, 2022
We present a simple undergraduate level experiment dealing with the preparation and characterization of a colloidal Langmuir-Blodgett (LB) film. The experiment is designed to invoke an interdisciplinary understanding of colloid chemistry and surface science. It will allow the students to develop the concepts of wettability, hydrophobicity, and…
Descriptors: Undergraduate Students, Student Projects, Chemistry, Science Experiments
Muammer Çalik; Neslhan Ültay; Hasan Bag; Alipasa Ayas – Chemistry Education Research and Practice, 2024
The purpose of this study is to "meta"-analytically evaluate research that used chemical bonding-based interventions to improve academic performance. Through "meta"-analysis, the present study used several keyword patterns (e.g., chemical bonding, experimental, chemistry education, science education) via relevant databases…
Descriptors: Chemistry, Meta Analysis, Effect Size, Intervention
Chang Chen; Yan Jin; Guangqing Liu – Journal of Chemical Education, 2024
Given the severe pollution caused by traditional plastics, biodegradable plastic products (BPPs) have received great attention and are appearing in people's lives in the form of packaging bags, tableware, etc. Whether a wide variety of BPPs can truly degrade depends on the environment. Aerobic composting is the arbitration method to evaluate the…
Descriptors: Undergraduate Students, Biochemistry, Science Instruction, Chemistry
Goes, Shannon L.; Mayer, Mikayla N.; Nutting, Jordan E.; Hoober-Burkhardt, Lena E.; Stahl, Shannon S.; Rafiee, Mohammad – Journal of Chemical Education, 2021
Organic electrosynthesis is an increasingly popular tool for driving and probing redox reactions. Recent advances in this field often employ an electrocatalyst to enhance the selectivity and efficiency of electrochemical reactions. A laboratory experiment was developed to introduce students to relevant mechanistic techniques in electrochemistry…
Descriptors: Science Instruction, College Science, Hands on Science, Teaching Methods
Esselman, Brian J.; Hofstetter, Heike; Ellison, Aubrey J.; Fry, Charles G.; Hill, Nicholas J. – Journal of Chemical Education, 2020
A set of inexpensive and pedagogically rich experiments focusing on S[subscript N]1, E1, and E2 reactions have been updated to include modern computational and spectroscopic analyses. The S[subscript N]1 experiment involves treatment of "tert"-amyl alcohol with hydrochloric acid to generate the corresponding alkyl chloride, which is used…
Descriptors: Science Instruction, Chemistry, Spectroscopy, Science Experiments