As the COVID-19 pandemic posed a
great deal of challenge to the
higher education community, the curricula for online instruction had
to be developed in a very short time period. Adaptations for Organic
Chemistry I and II with Laboratory courses have been made for the
online transition in response to the pandemic, and the insights gained
through individual and collaborative efforts are presented by Georgia
Gwinnett College (GGC) Organic Chemistry faculty. Herein, course specific
information with a distinction between lecture and lab and the analysis
of student assessment and withdrawal provide insights into the virtual
instruction. The initiative of instructors played a crucial role during
the transition and for maintaining student engagement, and the insights
will add valuable resources for further virtual or hybrid instruction.
Biodiesel was synthesized from locally sourced, on-campus, dining facility waste cooking oil and grease by base-catalyzed transesterification with methanol. The components and properties of the biodiesel were characterized by gas chromatography− mass spectrometry (GC−MS), Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (NMR ( 1 H and 13 C)), inductively coupled plasma-mass spectrometry (ICP−MS), viscometer, and bomb calorimetery. Five major components of fatty acid methyl esters (FAMEs) in the synthesized biodiesel were methyl oleate, methyl linoleate, methyl palmitate, methyl linolenate, and methyl stearate. The 1 H NMR spectra analysis strongly supports the GC−MS results for the percentage of each FAME in the biodiesel. Kinematic viscosity and heat of combustion of the biodiesel were measured, and their values were within optimal ranges recommended by the American Biodiesel Standard (ASTM D6751). The trace elemental composition of the biodiesel determined no significant environmental concerns. The biodiesel was blended with diesel and used to fuel a diesel generator. The combustion exhaust gas was analyzed by FT-IR, and results indicate that the fuel blend underwent complete combustion. Overall results indicate that the biodiesel-diesel fuel blend may be a sustainable, locally sourced alternative fuel for campus diesel utility vehicles.
In the ClassroomThe infamous, dreaded "orgo", a marathon of memorization. Unfortunately, that's how all too many college students view their first exposure to organic chemistry. (1)
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