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Determination of Surface Tension of Surfactant Solutions through Capillary Rise Measurements: An Image-Processing Undergraduate Laboratory Experiment
(American Chemical Society, 2016-09)
In this work, we described an image processing procedure for the measurement of surface tension of the air-liquid interface using isothermal capillary action. The experiment, designed for an undergraduate course, is based ...
Have Biofuel, Will Travel: A Colorful Experiment and a Different Approach To Teach the Undergraduate Laboratory
(AMER CHEMICAL SOC, 2011)
The substitution of petroleum-based fuels with those from renewable sources has gained momentum worldwide. A UV-vis experiment for the quantitative analysis of biofuels (bioethanol or biodiesel) in (petroleum-based) diesel ...
Developing and Implementing an R Shiny Application to Introduce Multivariate Calibration to Advanced Undergraduate Students
(American Chemical Society, 2020-04)
During a short chemometrics course in the seventh semester of the chemistry undergraduate program, students receive a brief theoretical introduction to multivariate calibration, focused on partial least-squares regression ...
Thermodynamics of sodium dodecyl sulfate (SDS) micellization: An undergraduate laboratory experiment
(American Chemical Society, 2011-05)
An undergraduate laboratory experiment is presented that allows a thermodynamic characterization of micelle formation of sodium dodecyl sulfate (SDS) in aqueous solutions. The critical micelle concentration (CMC) and the ...
Scrambled Eggs or How Eggshells Become Phosphates
(American Chemical Society, 2019-06)
As part of the training activities planned for the Chemical Engineering degree, in 2016, a group of students from the Chemical Engineering Laboratory course was challenged to face a plausible reuse of discarded eggshells. ...
A Gentle Introduction to Machine Learning for Chemists: An Undergraduate Workshop Using Python Notebooks for Visualization, Data Processing, Analysis, and Modeling
(American Chemical Society, 2021-08)
Machine learning, a subdomain of artificial intelligence, is a widespread technology that is molding how chemists interact with data. Therefore, it is a relevant skill to incorporate into the toolbox of any chemistry ...
Integrating chemical security into chemistry degree Programs in Argentina through an Interactive one-day course addressing ilicit or harmful applications of chemistry knowledge
(American Chemical Society, 2019-12)
The commitment and responsibility of new chemists is key for a world free of chemical weapons and illicit drugs, and for the development of ecofriendly technologies and a healthy environment. However, with a tight academic ...
History and Epistemology of Science in the Classroom: The Synthesis of Quinine as a Proposal
(AMER CHEMICAL SOCWASHINGTON, 2012)
The history of the quinine synthesis can be used as a case study to emphasize that science is influenced by social and historical processes. The first efforts toward the synthesis of this substance, which until recently ...
Understanding Chemical Equilibrium: The Role of Gas Phases and Mixing Contributions in the Minimum of Free Energy Plots
(American Chemical Society, 2017-03)
The use of free energy plots to understand the concept of thermodynamic equilibrium has been shown to be of great pedagogical value in materials science. Although chemical equilibrium is also amenable to this kind of ...
Chain Copolymerization Reactions: An Algorithm To Predict the Reaction Evolution with Conversion
(American Chemical Society, 2004-08)
The theoretical knowledge of kinetic curves is one of the most important problems of macromolecular chemistry along with its significance for modelling of polymer synthesis. In order to theoretically predict the evolution ...