NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 5 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Sucre-Rosales, Estefanía; Fernández-Terán, Ricardo; Carvajal, David; Echevarría, Lorenzo; Hernández, Florencio E. – Journal of Chemical Education, 2020
Herein, we present an experience-based learning approach that uses the COVID-19 pandemics knowledge about virus spread and epidemics to establish an analogy between a simple epidemics model--the SIR model (susceptible--infected--removed), and a second-order autocatalytic reaction with subsequent catalyst deactivation. Our approach provides a…
Descriptors: COVID-19, Pandemics, Communicable Diseases, Microbiology
Peer reviewed Peer reviewed
Direct linkDirect link
Campbell, Dean J.; Brewer, Emily R.; Martinez, Keri A.; Fitzjarrald, Tamara J. – Journal of Chemical Education, 2017
The purpose of this laboratory experiment is to study fundamental concepts of kinetics and equilibria and the isotope effects associated with both of these concepts. The concepts of isotopes in introductory and general chemistry courses are typically used within the contexts of atomic weights and radioactivity. Kinetic and equilibrium isotope…
Descriptors: Science Instruction, Science Laboratories, Science Experiments, Laboratory Experiments
Peer reviewed Peer reviewed
Direct linkDirect link
Gomez, Elaine; Paul, Melissa; Como, Charles; Barat, Robert – Chemical Engineering Education, 2014
This experiment and analysis offer an effective experience in greenhouse gas reduction. Ammoniated water is flowed counter-current to a simulated flue gas of air and CO2 in a packed column. The gaseous CO2 concentrations are measured with an on-line, non- dispersive, infrared analyzer. Column operating parameters include total gas flux, dissolved…
Descriptors: Science Experiments, College Science, Science Laboratories, Undergraduate Study
Peer reviewed Peer reviewed
Direct linkDirect link
Hunnicutt, Sally S.; Grushow, Alexander; Whitnell, Robert – Journal of Chemical Education, 2015
The POGIL-PCL project implements the principles of process-oriented, guided-inquiry learning (POGIL) in order to improve student learning in the physical chemistry laboratory (PCL) course. The inquiry-based physical chemistry experiments being developed emphasize modeling of chemical phenomena. In each experiment, students work through at least…
Descriptors: Inquiry, Science Instruction, Science Experiments, Chemistry
Peer reviewed Peer reviewed
Direct linkDirect link
Dias, Albino A.; Pinto, Paula A.; Fraga, Irene; Bezerra, Rui M. F. – Journal of Chemical Education, 2014
In enzyme kinetic studies, linear transformations of the Michaelis-Menten equation, such as the Lineweaver-Burk double-reciprocal transformation, present some constraints. The linear transformation distorts the experimental error and the relationship between "x" and "y" axes; consequently, linear regression of transformed data…
Descriptors: Science Instruction, Science Laboratories, Kinetics, Regression (Statistics)