Collection

2020 St.Lawrence Section Meeting

Authors

Katherine Gascon; Steven Weinstein; Michael G. Antoniades

An Undergraduate Experiment to Introduce Surface Science FundamentalsKatherine Gascon, Steven J. Weinstein, Michael G. AntoniadesRochester Institute of TechnologyAbstractThe thermodynamic concepts relevant to surfactant adsorption, and their impact on surfacetension, are introduced in a laboratory experiment designed for undergraduate students. Using areliable and accessible method, students measure the surface tension of aqueous solutions atdifferent concentrations of sodium dodecyl sulfate (SDS). Students collect data to estimate thecritical micelle concentration (CMC) and quantitatively determine the maximum surface excessusing the Gibbs adsorption equation. Students subsequently determine the surface area permolecule of this surfactant

Collection

2020 St.Lawrence Section Meeting

Authors

Kyle Trenshaw; Emily Weber; Rachel Monfredo

Skillset Shifts in First-year, First-semester Chemical Engineering Students Kyle F Trenshaw STEM Specialist at the Center for Excellence in Teaching and Learning University of Rochester Emily A Weber Adjunct Lecturer in Biology Nazareth College and St. John Fisher College Rachel Monfredo Lecturer and Senior Technical Associate in Chemical Engineering University of RochesterStudents’ self-assessment of the