NotesFAQContact Us
Collection
Advanced
Search Tips
Showing 1 to 15 of 20 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Keifer, David – Journal of Chemical Education, 2019
The change in enthalpy of a chemical reaction conducted at constant pressure is equal to the heat of the reaction plus the nonexpansion work of the reaction, ?H = qP + w[subscript additional]. After deriving that relationship, most general and physical chemistry textbooks set w[subscript additional] = 0 to arrive at the claim that ?H = qP, and…
Descriptors: Thermodynamics, Scientific Principles, Energy, Chemistry
Peer reviewed Peer reviewed
Direct linkDirect link
Rowe, Laura; Kubalewski, Maria; Clark, Robert; Statza, Emily; Goyne, Thomas; Leach, Katie; Peller, Julie – Journal of Chemical Education, 2019
Environmental pollution is both a worldwide and a local issue, and microplastic pollution in particular is receiving increased attention due to its prevalence and bioaccumulation potential affecting the food chain. This laboratory experiment uses current, research-based methods such that the students can determine the extent of microplastic…
Descriptors: Plastics, Undergraduate Students, Chemistry, Laboratory Experiments
Peer reviewed Peer reviewed
Direct linkDirect link
Farhat, Naha J.; Stanford, Courtney; Ruder, Suzanne M. – Journal of Chemical Education, 2019
Assessments can provide instructors and students with valuable information regarding student's level of knowledge and understanding, in order to improve both teaching and learning. In this study, we analyzed departmental assessment quizzes given to students at the start of Organic Chemistry 2, over an eight year period. This assessment quiz was…
Descriptors: Organic Chemistry, Teaching Methods, Science Instruction, Science Tests
Peer reviewed Peer reviewed
Direct linkDirect link
Popova, Maia; Bretz, Stacey Lowery – Journal of Chemical Education, 2018
The purpose of this study was to analyze organic chemistry students' annotations of reaction coordinate diagrams to better understand how they sought connections between reactions and reaction coordinate diagrams. Thirty-six students enrolled in Organic Chemistry II participated in semistructured, think-aloud interviews that asked students to…
Descriptors: Organic Chemistry, Undergraduate Students, Misconceptions, Problem Solving
Peer reviewed Peer reviewed
Direct linkDirect link
Hutchison, John M. – Journal of Chemical Education, 2017
The use of structural representations to convey spatial and chemical information is an integral part of organic chemistry. As a result, students must acquire skills to interpret and translate between the various diagrammatic forms. This article summarizes the skills sets, problem-solving strategies, and identified student difficulties in…
Descriptors: Undergraduate Students, Organic Chemistry, Science Process Skills, Problem Solving
Peer reviewed Peer reviewed
Direct linkDirect link
Kelly, Resa M.; Akaygun, Sevil – Journal of Chemical Education, 2016
This article summarizes an investigation into how Flash-based cartoon video tutorials featuring molecular visualizations affect students' mental models of acetic acid and hydrochloric acid solutions and how the acids respond when tested for electrical conductance. Variation theory served as the theoretical framework for examining how students…
Descriptors: Cartoons, Visualization, Animation, Chemistry
Peer reviewed Peer reviewed
Direct linkDirect link
Dick-Perez, Marilu; Luxford, Cynthia J.; Windus, Theresa L.; Holme, Thomas – Journal of Chemical Education, 2016
A 14-item, multiple-choice diagnostic assessment tool, the quantum chemistry concept inventory or QCCI, is presented. Items were developed based on published student misconceptions and content coverage and then piloted and used in advanced physical chemistry undergraduate courses. In addition to the instrument itself, data from both a pretest,…
Descriptors: Chemistry, Science Instruction, Multiple Choice Tests, Undergraduate Students
Peer reviewed Peer reviewed
Direct linkDirect link
Privat, Romain; Jaubert, Jean-Noël; Moine, Edouard – Journal of Chemical Education, 2016
In many textbooks of chemical-engineering thermodynamics, a gas mixture obeying the fundamental law pV[subscript m] = RT is most often called ideal-gas mixture (in some rare cases, the term perfect-gas mixture can be found). These textbooks also define the fundamental concept of ideal solution which in theory, can be applied indifferently to…
Descriptors: Scientific Concepts, Thermodynamics, Undergraduate Students, Misconceptions
Peer reviewed Peer reviewed
Direct linkDirect link
Bretz, Stacey Lowery; McClary, LaKeisha – Journal of Chemical Education, 2015
Most organic chemistry reactions occur by a mechanism that includes acid-base chemistry, so it is important that students develop and learn to use correct conceptions of acids and acid strength. Recent studies have described undergraduate organic chemistry students' cognitive resources related to the Brønsted-Lowry acid model and the Lewis acid…
Descriptors: Knowledge Level, Familiarity, Organic Chemistry, Scientific Literacy
Peer reviewed Peer reviewed
Direct linkDirect link
Versprille, Ashley N.; Towns, Marcy H. – Journal of Chemical Education, 2015
While much is known about secondary students' perspectives of climate change, rather less is known about undergraduate students' perspectives. The purpose of this study is to investigate general chemistry students' understanding of the chemistry underlying climate change. Findings that emerged from the analysis of the 24 interviews indicate that…
Descriptors: Chemistry, Science Instruction, Climate, Environment
Peer reviewed Peer reviewed
Direct linkDirect link
Esselman, Brian J.; Hill, Nicholas J. – Journal of Chemical Education, 2015
The electronic and molecular structure of the acylium cation ([CH[subscript 3]CO][superscript +], 1) receives varied treatment in undergraduate textbooks and online resources. The overall structure of 1 is typically represented as an equal combination of resonance structures containing C-O triple and double bonds, the latter structure occasionally…
Descriptors: Investigations, Undergraduate Students, Molecular Structure, Knowledge Representation
Peer reviewed Peer reviewed
Direct linkDirect link
Nelson, Donna J.; Kumar, Ravi; Ramasamy, Saravanan – Journal of Chemical Education, 2015
Learning the chemistry of compounds containing carbonyl groups is difficult for undergraduate students partly because of a convolution of multiple possible reaction sites, competitive reactions taking place at those sites, different criteria needed to discern between the mechanisms of these reactions, and no straightforward selection method…
Descriptors: Science Instruction, Textbooks, Organic Chemistry, Undergraduate Students
Peer reviewed Peer reviewed
Direct linkDirect link
DeFever, Ryan S.; Bruce, Heather; Bhattacharyya, Gautam – Journal of Chemical Education, 2015
Using a constructivist framework, eight senior chemistry majors were interviewed twice to determine: (i) structural inferences they are able to make from chemical and physical properties; and (ii) their ability to apply their inferences and understandings of these chemical and physical properties to solve tasks on the reactivity of organic…
Descriptors: Majors (Students), College Science, Science Instruction, Interviews
Peer reviewed Peer reviewed
Direct linkDirect link
Muniz, Marc N.; Oliver-Hoyo, Maria T. – Journal of Chemical Education, 2014
We report a novel educational activity designed to teach quantum mechanical tunneling to upper-division undergraduate students in the context of nanochemistry. The activity is based on a theoretical framework for analogy and is split into three parts that are linked pedagogically through the framework: classical ball-and-ramp system, tunneling…
Descriptors: Chemistry, Quantum Mechanics, Teaching Methods, Undergraduate Students
Peer reviewed Peer reviewed
Direct linkDirect link
Donaghy, Kelley J.; Saxton, Kathleen J. – Journal of Chemical Education, 2012
A three-step active-learning approach is described to enhance the spatial abilities of general chemistry students with respect to three-dimensional molecular drawing and visualization. These activities are used in a medium-sized lecture hall with approximately 150 students in the first semester of the general chemistry course. The first activity…
Descriptors: Chemistry, Geometric Concepts, Misconceptions, Geometry
Previous Page | Next Page »
Pages: 1  |  2