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Longmuir, Kenneth J. – Advances in Physiology Education, 2014
In this project, the traditional lecture hall presentation of acid-base physiology in the first-year medical school curriculum was replaced by interactive, computer-assisted instruction designed primarily for the iPad and other mobile computer platforms. Three learning modules were developed, each with ~20 screens of information, on the subjects…
Descriptors: Computer Assisted Design, Physiology, Telecommunications, Educational Technology
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Sesen, Burcin Acar; Tarhan, Leman – Research in Science & Technological Education, 2011
Background and purpose: Active-learning as a student-centered learning process has begun to take more interest in constructing scientific knowledge. For this reason, this study aimed to investigate the effectiveness of active-learning implementation on high-school students' understanding of "acids and bases". Sample: The sample of this…
Descriptors: Experimental Groups, Control Groups, Achievement Tests, Foreign Countries
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Bozlee, Brian J.; Janebo, Maria; Jahn, Ginger – Journal of Chemical Education, 2008
The chemistry of dissolved inorganic carbon in seawater is reviewed and used to predict the potential effect of rising levels of carbon dioxide in the atmosphere. In agreement with more detailed treatments, we find that calcium carbonate (aragonite) may become unsaturated in cold surface seawater by the year 2100 C.E., resulting in the destruction…
Descriptors: Chemistry, Teaching Models, Prediction, College Science
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Smith, Garon C.; Hossain, Md Mainul – Journal of Chemical Education, 2016
BufCap TOPOS is free software that generates 3-D topographical surfaces ("topos") for acid-base equilibrium studies. It portrays pH and buffer capacity behavior during titration and dilution procedures. Topo surfaces are created by plotting computed pH and buffer capacity values above a composition grid with volume of NaOH as the x axis…
Descriptors: Chemistry, Science Instruction, Computer Software, Computer Uses in Education
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Watters, Dianne J.; Watters, James J. – Biochemistry and Molecular Biology Education, 2006
In foundation biochemistry and biological chemistry courses, a major problem area that has been identified is students' lack of understanding of pH, acids, bases, and buffers and their inability to apply their knowledge in solving acid/base problems. The aim of this study was to explore students' conceptions of pH and their ability to solve…
Descriptors: Biochemistry, Calculators, Problem Solving, Knowledge Level
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Rhodes, Sam – American Biology Teacher, 2006
This article describes a few novel acid-base experiments intended to introduce students to the basic concepts of acid-base chemistry and provide practical examples that apply directly to the study of biology and the human body. Important concepts such as the reaction between carbon dioxide and water, buffers and protein denaturation, are covered.…
Descriptors: Chemistry, Science Experiments, Science Activities, Laboratory Experiments
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Smith, Garon C.; Hossain, Md Mainul – Journal of Chemical Education, 2017
Species TOPOS is a free software package for generating three-dimensional (3-D) topographic surfaces ("topos") for acid-base equilibrium studies. This upgrade adds 3-D species distribution topos to earlier surfaces that showed pH and buffer capacity behavior during titration and dilution procedures. It constructs topos by plotting…
Descriptors: Computer Software, Science Instruction, Educational Technology, Technology Uses in Education
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Carvalho, Eduardo O.; Nantes, Iseli L. – Biochemistry and Molecular Biology Education, 2008
In this study, the application and evaluation of a novel didactic tool (buffer kit) is described to make it easy for students in the biological area to overcome their conceptual deficiencies that render the learning of the buffering mechanism difficult. The buffer kit was constructed with double-face EVA cards with a conjugated acid formula…
Descriptors: Control Groups, Undergraduate Students, Student Attitudes, Scientific Concepts
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Nyasulu, Frazier; McMills, Lauren; Barlag, Rebecca – Journal of Chemical Education, 2013
A laboratory to determine the equilibrium constants of weak acid negative weak base reactions is described. The equilibrium constants of component reactions when multiplied together equal the numerical value of the equilibrium constant of the summative reaction. The component reactions are weak acid ionization reactions, weak base hydrolysis…
Descriptors: Science Laboratories, Science Instruction, Secondary School Science, College Science
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Olson, Virgil K.; And Others – Journal of Chemical Education, 1977
Presents graphs that can be used to illustrate the concepts of buffer capacity and acid-base titrations. (MLH)
Descriptors: Acids, Chemistry, College Science, Concept Teaching
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Rodriguez, Hernan B.; Mirenda, Martin – Journal of Chemical Education, 2012
A modified laboratory experiment for undergraduate students is presented to evaluate the effects of the ionic strength, "I", on the equilibrium concentration quotient, K[subscript c], of the acid-base indicator bromcresol green (BCG). The two-step deprotonation of the acidic form of the dye (sultone form), as it is dissolved in water, yields…
Descriptors: Chemistry, Undergraduate Students, Laboratory Experiments, Science Instruction
Schnoebelen, Carly Lynn – ProQuest LLC, 2018
In response to both nationwide calls for reform and a perception that the existing chemistry curriculum was not meeting the needs of life science students, faculty in the department of chemistry at Purdue created a redesigned chemistry course sequence specifically aimed at preparing biology majors. The new sequence, called the 1-2-1 curriculum,…
Descriptors: Chemistry, College Science, Undergraduate Students, Majors (Students)
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Kulevich, Suzanne E.; Herrick, Richard S.; Mills, Kenneth V. – Journal of Chemical Education, 2014
The Holy Cross Chemistry Department has designed and implemented an experiment on buffers as part of our Discovery Chemistry curriculum. The pedagogical philosophy of Discovery Chemistry is to make the laboratory the focal point of learning for students in their first two years of undergraduate instruction. We first pose questions in prelaboratory…
Descriptors: Science Instruction, College Science, Undergraduate Study, Chemistry
Maude, David L. – Physiologist, 1985
Describes and lists a program for Apple Pascal Version 1.1 which investigates the behavior of the bicarbonate-carbon dioxide buffer system in acid-base disorders. Designed specifically for the preclinical medical student, the program has proven easy to use and enables students to use blood gas parameters to arrive at diagnoses. (DH)
Descriptors: Acids, Chemical Equilibrium, College Science, Computer Simulation
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Treptow, Richard S. – Journal of Chemical Education, 1986
Discusses the difficulties that beginning chemistry students have in understanding acid-base chemistry. Describes the use of conjugate acid-base charts in helping students visualize the conjugate relationship. Addresses chart construction, metal ions, buffers and pH titrations, and the organic functional groups and nonaqueous solvents. (TW)
Descriptors: Acids, Charts, Chemical Reactions, Chemistry
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