“Greening” a Familiar General Chemistry Experiment: Coffee Cup Calorimetry to Determine the Enthalpy of Neutralization of an Acid–Base Reaction and the Specific Heat Capacity of Metals

Bopegedera, A. M. R. P.; Perera, K. Nishanthi R.

doi:10.1021/acs.jchemed.6b00189

Cited by 22 publications

(25 citation statements)

References 38 publications

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“…■ DATA AND ANALYSIS Alkalinity Students' familiarity with spreadsheet use from previous experiments 98,100,101,111,115,116 was instrumental in tackling this involved data analysis. Only a handful of students had taken calculus previously.…”

Section: ■ Hazardsmentioning

confidence: 99%

An Interdisciplinary, Project-Based Inquiry into the Chemistry and Geology of Alkaline Surface Lake Waters in the General Chemistry Laboratory

Bopegedera

Coughenour

2020

J. Chem. Educ.

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A new project-based laboratory (PJBL) was developed for general chemistry students to tackle the steps involved in chemical water quality analysis using an accessible, real-world hydrologic system (the lakes of the Lower Grand Coulee, Washington). This PJBL was developed in a joint general chemistry and environmental geology course by a chemist–geologist teaching team, and it emphasized an interdisciplinary approach for a more complete understanding of the geochemistry of the lake system. Students worked through the project following industry protocols for sample collection in the field, chemical laboratory determination of dissolved solids, alkalinity, and dissolved metals, and interpretation of the results within the unique geological context of the lakes. Foundational concepts in solution chemistry, such as solubility product, pH, and alkalinity, were essential in the discussion of the lake water trends and broader geologic processes. In particular, students could relate chemical weathering of basaltic bedrock to the measured lake water constituents and could observe how the groundwater- and evaporation-controlled fluxes of water in the closed basin produced a downstream increase in alkalinity and dissolved load. Collectively, the steps involved in the project meet the essential criteria (as defined by other authors) for a complete chemistry PJBL. This PJBL can be readily adapted to a wide range of groundwater or surface water systems and can be framed in a more or less interdisciplinary context. Many students, without prompting and on confidential evaluations, rated this as the most valuable learning experience in the year-long academic coursework.

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Section: ■ Hazardsmentioning

confidence: 99%

An Interdisciplinary, Project-Based Inquiry into the Chemistry and Geology of Alkaline Surface Lake Waters in the General Chemistry Laboratory

Bopegedera

Coughenour

2020

J. Chem. Educ.

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“…Chemical educators should continue to refine laboratory curricula to reflect these principles. Increasing evidence suggests that laboratory courses improve students' knowledge of scientific methods, and engagement with chemistry [7,8]. These courses enhance the ability to think scientifically and critically, as well as to communicate effectively.…”

Section: Introductionmentioning

confidence: 99%

Design of an Extended Experiment with Electrical Double Layer Capacitors: Electrochemical Energy Storage Devices in Green Chemistry

Lin

Zhao

et al. 2018

Sustainability

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An extended undergraduate experiment involving electrochemical energy storage devices and green energy is described herein. This experiment allows for curriculum design of specific training modules in the field of green chemistry. Through the study of electrical double layer capacitors, students learned to assemble an electrical double layer capacitor and perform electrochemical measurements (cyclic voltammetry and galvanostatic charge-discharge) to evaluate the effect of various electrolytes. In addition, students powered a diode with the electrical double layer capacitors. We use the laboratory module to successfully connect electrochemistry with green chemistry through the study of a real-world application. In addition, a green chemistry case study was introduced to the laboratory curriculum. During the experiment, students acquired fundamental experience in electrochemistry and gained analysis skills, critical thinking, and scientific literacy. The results of this work can be used as a case study on green chemical education that considers the students’ awareness of renewable and clean energy fields.

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“…Supplementing core topics with sustainability has been achieved through the efforts of initiatives such as Green Chemistry Education. 68 While sustainable concepts and green chemistry have been primarily showcased in upper level elective 69,70 and organic chemistry lab courses, 71,72,73,74 efforts have been made to expand the curriculum into introductory 75,76,77 and general chemistry courses. 78,79,80 The lack of green chemistry content in organic chemistry textbooks has been explored and it has been suggested that connections to societal issues and sustainability contribute to the development of leadership skills.…”

Section: Key Takeawaysmentioning

confidence: 99%

Sustainable Polymers Square Table Final Report

Pablo

Buenaflor

Chan

et al. 2021

Preprint

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OverviewThe discovery, development, and deployment of sustainable polymers, the molecules that make up plastics, are critical to the health of the globe and its inhabitants. Moreover, the economic vitality of the multitudinous industries that use polymers in their processes and products will be critically reliant on sustainable solutions because of many interwoven factors that include environmental stewardship, policy compliance, and societal and investor demands. Stakeholders in the polymeric materials ecosystem clearly recognize the significant motivating factors in a push to meet the requirements of a circular economy and thus a sustainable future. Inertia associated with the current polymer production and consumption landscapes, however, has resulted in resistance toward change that has proven challenging to overcome. Factors that have contributed to the status quo include the ubiquitous nature of plastics utilization across all sectors of the economy, the incredibly diverse and tunable functional attributes of polymeric materials that make them desirable to other material alternatives, and the highly optimized and economic mass manufacturing capabilities associated with plastics derived from low-cost petroleum resources. There is an urgent need for change to solve our pressing plastics predicament: modern society depends on these polymeric materials and continually expects increased performance and functionality but suffers dire consequences from the associated pollution, which takes the forms that include greenhouse gas emissions from plastic production, and accumulation of plastic waste in the environment. A solution to this polymer puzzle is imperative.Given the current advantages of plastics in modern society and the clear recognition of the everaccumulating waste associated with their disposal, lack of efficient recycling technologies and infrastructure, and persistence in the environment, it is clear that a new approach is needed We are motivated by the successes associated with the Materials Genome Initiative (MGI), 1 where the close coupling of experiment and theory has facilitated materials discovery in some sectors. But while an MGI approach has been effective at accelerating the research cycle of prediction, synthesis, and characterization, efforts to incorporate the elements of translation and technological deployment into that cycle have been limited. This is especially true in the soft materials arena. If a next-generation MGI-like approach spanning length scales (from atomic to molecular to material) and time scales (from nanoseconds to decades) can be envisioned, implemented, and supported, and if attention is given to technological feasibility, it will serve as

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“Greening” a Familiar General Chemistry Experiment: Coffee Cup Calorimetry to Determine the Enthalpy of Neutralization of an Acid–Base Reaction and the Specific Heat Capacity of Metals

Cited by 22 publications

References 38 publications

An Interdisciplinary, Project-Based Inquiry into the Chemistry and Geology of Alkaline Surface Lake Waters in the General Chemistry Laboratory

An Interdisciplinary, Project-Based Inquiry into the Chemistry and Geology of Alkaline Surface Lake Waters in the General Chemistry Laboratory

Design of an Extended Experiment with Electrical Double Layer Capacitors: Electrochemical Energy Storage Devices in Green Chemistry

Sustainable Polymers Square Table Final Report

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