| Journal Articles: 61 results |
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Netorials Rebecca Ottosen, John Todd, Rachel Bain, Mike Miller, Liana Lamont, Mithra Biekmohamadi, and David B. Shaw Netorials is a collection of about 30 online tutorials on general chemistry topics designed as a supplement for high school or college introductory courses. Each Netorial contains several pages of interactive instruction that includes animated mouse-overs, questions for students to answer, and manipulable molecular structures. Ottosen, Rebecca; Todd, John; Bain, Rachel; Miller, Mike; Lamont. Liana; Biekmohamadi, Mithra; Shaw, David B. J. Chem. Educ. 2008, 85, 463.
Acids / Bases |
Electrochemistry |
Reactions |
VSEPR Theory |
Stoichiometry
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Imidazole as a pH Probe: An NMR Experiment for the General Chemistry Laboratory William J. Hagan, Jr., Dennis L. Edie, and Linda B. Cooley An experiment is described that employs the 1H-NMR signal of aqueous imidazole to determine the pH of an unknown solution. The procedure involves the preparation of a calibration curve, which is then used for the analysis of the unknown(s). Hagan, William J., Jr.; Edie, Dennis L.; Cooley, Linda B. J. Chem. Educ. 2007, 84, 1188.
Acids / Bases |
Aqueous Solution Chemistry |
Aromatic Compounds |
Calibration |
NMR Spectroscopy |
pH
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Constructing a Graphic Organizer in the Classroom: Introductory Students' Perception of Achievement Using a Decision Map To Solve Aqueous Acid–Base Equilibria Problems Stephen DeMeo A decision map is a directional heuristic that helps learners solve problems within a generic framework. The decision map that is presented was created to solve pH problems of varying difficulty that introductory college chemistry students encounter when studying acidbase equilibria. DeMeo, Stephen. J. Chem. Educ. 2007, 84, 540.
Acids / Bases |
Equilibrium
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Astrochemistry Examples in the Classroom Reggie L. Hudson In this article some recent developments in astrochemistry are suggested as examples for the teaching of acid-base chemistry, molecular structure, and chemical reactivity. Suggestions for additional reading are provided, with an emphasis on readily-accessible materials. Hudson, Reggie L. J. Chem. Educ. 2006, 83, 1611.
Acids / Bases |
Astrochemistry |
IR Spectroscopy |
Molecular Properties / Structure |
Brønsted-Lowry Acids / Bases
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Weak Acid pKa Determination Using Capillary Zone Electrophoresis Mike Solow In this experiment, students use capillary zone electrophoresis to determine the effective mobility of benzoic acid at two different hydrogen ion concentrations. A plot of these data yields the pKa of benzoic acid. Solow, Mike. J. Chem. Educ. 2006, 83, 1194.
Acids / Bases |
Aqueous Solution Chemistry |
Carboxylic Acids |
Electrophoresis |
Instrumental Methods
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pH Paradoxes: Demonstrating That It Is Not True That pH ≡ -log[H+] Christopher G. McCarty and Ed Vitz Six demonstrations highlighting paradoxes that arise if pH is incorrectly defined as -log[H+] are presented as justification for the recommendation that pH should be correctly defined as pH = -log aH+ in textbooks. McCarty, Christopher G.; Vitz, Ed. J. Chem. Educ. 2006, 83, 752.
Acids / Bases |
Aqueous Solution Chemistry |
Ion Selective Electrodes |
pH |
Quantitative Analysis
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Using Visible Spectrophotometers and pH Measurements To Study Speciation in a Guided-Inquiry Laboratory William H. Otto, Cynthia K. Larive, Susan L. Mason, Janet B. Robinson, Joseph A. Heppert, and James D. Ellis A collective-effort, guided-inquiry laboratory investigation was developed for the second-semester general chemistry laboratory for the purpose of increasing student conceptual understanding of equilibrium and speciation phenomena. This investigation required students to employ the chemical indicator phenol red in phosphate buffer solution, computer interfaced pH probes, and visible spectrophotometers. Through a combination of potentiometric and visible absorption measurements, the students determined the pH conditions that alter equilibrium concentrations of multiple species (colored and transparent) in solution. Otto, William H.; Larive, Cynthia K.; Mason, Susan L.; Robinson, Janet B.; Heppert, Joseph A.; Ellis, James D. J. Chem. Educ. 2005, 82, 1552.
Acids / Bases |
UV-Vis Spectroscopy |
Equilibrium |
pH |
Water / Water Chemistry |
Dyes / Pigments
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Teaching pH Measurements with a Student-Assembled Combination Quinhydrone Electrode Fritz Scholz, Tim Steinhardt, Heike Kahlert, Jens R. Pörksen, and Jürgen Behnert A combination pH electrode that can be assembled by the student is described. It consists of a glass holder and two sensors in the form of rubber stoppers that contain quinhydrone and graphite. The combination electrode is suitable to teach potentiometric measurements, pH measurements, and the interplay of acidbase and redox equilibria. The electrode meets highest safety standards and overcomes the troubles associated with the use of the conventional quinhydrone electrode. Scholz, Fritz; Steinhardt, Tim; Kahlert, Heike; Pörksen, Jens R.; Behnert, Jürgen. J. Chem. Educ. 2005, 82, 782.
Acids / Bases |
pH |
Laboratory Equipment / Apparatus |
Electrochemistry
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Quantitative Determination of Citric and Ascorbic Acid in Powdered Drink Mixes: A High School or General Chemistry Experiment Samuella B. Sigmann and Dale E. Wheeler This article provides a method to quantitatively determine the amount of both citric and ascorbic acid in a given sample of a powdered drink mix. The total moles of acid in the sample are determined by titration with sodium hydroxide. Moles of ascorbic acid are determined by titration with potassium iodate. Moles of citric acid are determined by difference. Sigmann, Samuella B.; Wheeler, Dale E. J. Chem. Educ. 2004, 81, 1479.
Acids / Bases |
Aqueous Solution Chemistry |
Consumer Chemistry |
Food Science |
Quantitative Analysis |
Titration / Volumetric Analysis
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Unified Approximations: A New Approach for Monoprotic Weak Acid–Base Equilibria Harry L. Pardue, Ihab N. Odeh, and Teweldemedhin M. Tesfai This article describes a new approach to approximate calculations for monoprotic acidbase equilibria in otherwise pure water. The new approach, identified herein as unified approximations, uses a simple decision criterion to select between situations that should be treated as deprotonation and protonation reactions. The remaining treatment takes account of changes in concentrations of conjugate acidbase pairs for all situations and ignores autoprotolysis only for situations for which the analytical concentration of either the conjugate acid or conjugate base will always be larger than zero. Pardue, Harry L.; Odeh, Ihab N.; Tesfai, Teweldemedhin M. J. Chem. Educ. 2004, 81, 1367.
Acids / Bases |
Equilibrium |
Chemometrics
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Principal Species and pH in Acid–Base Solutions Robert M. Hanson Web page that allows one to determine the concentrations of principal species in a variety of solutions or mixtures of solutions; also allows a virtual titration. Hanson, Robert M. J. Chem. Educ. 2002, 79, 1486.
Acids / Bases |
Aqueous Solution Chemistry |
Solutions / Solvents |
Titration / Volumetric Analysis |
Enrichment / Review Materials
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Teaching Brønsted-Lowry Acid-Base Theory in a Direct Comprehensive Way Jamie L. Adcock Unifying all the Bronsted-Lowry acid-base concepts in a quantitative way. Adcock, Jamie L. J. Chem. Educ. 2001, 78, 1495.
Acids / Bases |
Equilibrium |
Learning Theories |
Water / Water Chemistry |
Brønsted-Lowry Acids / Bases
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Blood-Chemistry Tutorials: Teaching Biological Applications of General Chemistry Material Rachel E. Casiday, Dewey Holten, Richard Krathen, and Regina F. Frey Four, Web-based tutorials that deal with chemical processes in the blood and provide an integrated biological context for a variety of chemical concepts. Casiday, Rachel E.; Holten, Dewey; Krathen, Richard; Frey, Regina F. J. Chem. Educ. 2001, 78, 1210.
Applications of Chemistry |
Medicinal Chemistry |
Proteins / Peptides |
Acids / Bases |
Equilibrium |
Molecular Properties / Structure
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Phosphate Buffers and Telephone Poles - A Useful Analogy with Limitations Edwin S. Gould A visual aid is presented to help general chemistry students establish the major phosphorus species in buffer solutions made from partial neutralizations of phosphoric acid and to estimate concentrations. Gould, Edwin S. J. Chem. Educ. 1999, 76, 1511.
Aqueous Solution Chemistry |
Solutions / Solvents |
Acids / Bases
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Do pH in Your Head Addison Ault Every aqueous solution has a pH. Two factors determine this pH: the acidic or basic strength of the solute, and its concentration. When you use pKa values to express acidic and basic strength you can easily estimate the approximate pH of many aqueous solutions of acids, bases, and their salts and their buffers. Ault, Addison. J. Chem. Educ. 1999, 76, 936.
Equilibrium |
Acids / Bases |
Aqueous Solution Chemistry |
Learning Theories |
Chemometrics |
Brønsted-Lowry Acids / Bases
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A Simplified Method for Finding the pKa of an Acid-Base Indicator by Spectrophotometry George S. Patterson Experiments on determining the pKa of an acid-base indicator by visible spectroscopy are often found in analytical and physical chemistry lab texts. The procedure described here is a modification suitable for general chemistry lab students. Patterson, George S. J. Chem. Educ. 1999, 76, 395.
Acids / Bases |
Equilibrium |
UV-Vis Spectroscopy
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Chemical Domino Demonstration M. Dale Alexander The Chemical Domino Demonstration is both educational and entertaining. It provides an excellent means for a review of chemical concepts at the conclusion of a general chemistry course. This demonstration consists of a number of different chemical reactions occurring in sequence in a Rube Goldberg-type apparatus. M. Dale Alexander. J. Chem. Educ. 1998, 75, 490.
Reactions |
Acids / Bases |
Oxidation / Reduction
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From Christmas Ornament to Glass Electrode Rogério T. da Rocha, Ivano G. R. Gutz, and Claudimir L. do Lago Instructions and use of a homemade glass electrode for pH measurements/titrations. Da Rocha, Rogerio T.; Gutz, Ivano G. R.; do Lago, Claudimir L. J. Chem. Educ. 1995, 72, 1135.
Laboratory Equipment / Apparatus |
Electrochemistry |
Titration / Volumetric Analysis |
Ion Selective Electrodes |
Aqueous Solution Chemistry |
Acids / Bases |
Laboratory Management |
pH
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From Titration Data to Buffer Capacities: A Computer Experiment for the Chemistry Lab or Lecture Roy W. Clark, Gary D. White, Judith M. Bonicamp, and Exum D. Watts Provides titration curve data that students can plot and analyze using spreadsheets to develop student understanding of pH, derivatives, buffer capacity, and the behavior of dilute buffers; includes sample graphs and analysis. Clark, Roy W.; White, Gary D.; Bonicamp, Judith M.; Watts, Exum D. J. Chem. Educ. 1995, 72, 746.
Acids / Bases |
pH |
Titration / Volumetric Analysis |
Chemometrics
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Not So Late Night Chemistry with USD Koppang, Miles D.; Webb, Karl M.; Srinivasan, Rekha R. Through the program, college students enhance their knowledge and expertise on a chemical topic and gain experience in scientific presentations. They also serve as role models to the high school students who can relate to college students more easily than the chemistry faculty members and their high school students. Koppang, Miles D.; Webb, Karl M.; Srinivasan, Rekha R. J. Chem. Educ. 1994, 71, 929.
Forensic Chemistry |
Polymerization |
Electrochemistry |
Isotopes |
Acids / Bases
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Teaching the Truth about pH Hawkes, Stephen J. -log[H+] is only an approximation to pH; how to teach pH to avoid misleading students. Hawkes, Stephen J. J. Chem. Educ. 1994, 71, 747.
pH |
Acids / Bases |
Aqueous Solution Chemistry |
Equilibrium
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A recipe for the preparation of a pH 7.00 calibration buffer Jackman, Donald C. Simple recipe for preparation of a pH 7.00 calibration buffer based on the NIST standard. Jackman, Donald C. J. Chem. Educ. 1993, 70, 853.
Acids / Bases |
Laboratory Management |
pH
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The acid-base package Ramette, Richard W.; Holmes, Jon L. Software that will calculate theoretical titration curve data and the pH for any mixture of acids and/or bases. Ramette, Richard W.; Holmes, Jon L. J. Chem. Educ. 1992, 69, 1010.
Acids / Bases |
pH |
Titration / Volumetric Analysis
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A low-cost pH meter for the classroom. Harris, David L.; Harris, Daniel C. Design of an inexpensive yet precise pH meter for classroom use. Harris, David L.; Harris, Daniel C. J. Chem. Educ. 1992, 69, 563.
Laboratory Equipment / Apparatus |
pH |
Acids / Bases
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A study of some 2-chloro-2-methylpropane kinetics using a computer interface Allen, Anthony; Haughey, Adam J.; Hernandez, Yolanda; Ireton, Scot Examining the effects of a few variables on the rate of a chemical reaction using specialized software. Allen, Anthony; Haughey, Adam J.; Hernandez, Yolanda; Ireton, Scot J. Chem. Educ. 1991, 68, 609.
Kinetics |
Rate Law |
Acids / Bases |
Laboratory Computing / Interfacing
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Measurements of equilibrium constants of acid-base indicators with a blocktronic colorimeter Walters, David; Birk, James P. A computer-interfaced measurement of equilibrium constants of acid-base indicators (methyl orange, methyl red, and phenolphthalein). Walters, David; Birk, James P. J. Chem. Educ. 1990, 67, A252.
Acids / Bases |
Dyes / Pigments |
Spectroscopy |
Equilibrium |
Laboratory Computing / Interfacing
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A modified graphical method for acid-base equilibria Nakagawa, Kuniaki A method based on logarithmic diagrams for finding the pH values for various systems in acid-base equilibria. Nakagawa, Kuniaki J. Chem. Educ. 1990, 67, 673.
Acids / Bases |
Equilibrium |
pH
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The pH of any mixture of monoprotic acids and bases Herman, D. P.; Booth, K. K.; Parker, O. J.; Breneman, G. L. 115. Bits and pieces, 44. The pH of any mixture of monoprotic weak and strong acids and bases can be calculated. A curve can also be plotted for the titration of the mixture by any monoportic weak or strong acid or base. Herman, D. P.; Booth, K. K.; Parker, O. J.; Breneman, G. L. J. Chem. Educ. 1990, 67, 501.
Acids / Bases |
Titration / Volumetric Analysis |
pH
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The acid-base package: A collection of useful programs for proton-transfer systems Hawkes, Stephen J. Four programs that deal with the types of acid-base calculations normally encountered in introductory and analytical chemistry courses. Hawkes, Stephen J. J. Chem. Educ. 1989, 66, 830.
Acids / Bases |
Chemometrics
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Chemical principles for the introductory laboratory, CHM 384 (Johnson, James F.) Wegner, Carol A comprehensive review of the title program which overviews basic techniques and concepts presented in introductory laboratory courses. Topics include: titration, equilibrium, Ksp, solubility, Beer's law, coordination complexes and first-order rates of reaction. Wegner, Carol J. Chem. Educ. 1988, 65, A47.
Acids / Bases |
Titration / Volumetric Analysis |
UV-Vis Spectroscopy |
Equilibrium |
Solutions / Solvents |
Coordination Compounds |
Kinetics
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The perils of carbonic acid and equilibrium constants Jencks, William P.; Altura, Rachel A. It is important to remember that the small amounts of carbon dioxide that are usually present in water can have large effects on acid-base equilibria of dilute solutions and that dilute solutions of most weak acids and bases undergo significant protonation or hydrolysis when they are dissolved in water. Jencks, William P.; Altura, Rachel A. J. Chem. Educ. 1988, 65, 770.
Acids / Bases |
Equilibrium |
Aqueous Solution Chemistry
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pH measurements on the overhead projector Solomon, Sally; High, Nancy Universal indicator solution and a corresponding pH indicator chart are used to make pH measurements of an overhead projector where the results are visible to all students in a large lecture hall. Solomon, Sally; High, Nancy J. Chem. Educ. 1987, 64, 964.
pH |
Acids / Bases |
Dyes / Pigments
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Buffer capacity: An undergraduate laboratory experiment Russo, Steven O.; Hanania, George I. H. A quantitative experiment that can demonstrate buffer action and the measurement of buffer capacity, for a given buffer system, over a range of pH. Russo, Steven O.; Hanania, George I. H. J. Chem. Educ. 1987, 64, 817.
Acids / Bases |
pH |
Aqueous Solution Chemistry
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Chemistry: Stoichiometry and Chemistry: Acids and Bases ( Frazin, J. and partners) Bendall, Victor I.; Roe, Robert, Jr. Two reviews of a software package that contains drill and practice programs that are suitable for beginning students of chemistry. Bendall, Victor I.; Roe, Robert, Jr. J. Chem. Educ. 1986, 63, A204.
Stoichiometry |
Acids / Bases
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Density gradient columns for chemical displays Guenther, William B. An important advantage of these demonstrations of complex chemistry is that students can observe them over a period of time as they grasp concepts of solution equilibria. Guenther, William B. J. Chem. Educ. 1986, 63, 148.
Acids / Bases |
pH |
Coordination Compounds |
Metals
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An invitation to experiment with an experiment Phanstiel, Otto Students are asked to develop an experiment in which they isolate an acid / base indicator from a flower and determine the pH at which it changes color. Phanstiel, Otto J. Chem. Educ. 1985, 62, 522.
Acids / Bases |
Dyes / Pigments |
pH
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Visualization of buffer action and the acidifying effect of CO2 Schonbeck, Niels D. Includes a discussion of the physiological buffering of CO2 in the human body. Schonbeck, Niels D. J. Chem. Educ. 1985, 62, 436.
Acids / Bases |
pH
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A simple demonstration of buffer action Duerst, Marilyn D. A simple yet impressive visual demonstration of buffer action. Duerst, Marilyn D. J. Chem. Educ. 1985, 62, 435.
Acids / Bases |
pH
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Acid rain analysis by standard addition titration Ophardt, Charles E. A simple standard addition titration method for determining the acidity of a rain or snow sample. Ophardt, Charles E. J. Chem. Educ. 1985, 62, 257.
Titration / Volumetric Analysis |
Atmospheric Chemistry |
Acids / Bases |
Qualitative Analysis
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Why teach solution equilibrium? Butler, James N. What are the most important aspects of solution equilibrium to teach at the elementary level? Butler, James N. J. Chem. Educ. 1984, 61, 784.
Equilibrium |
Solutions / Solvents |
Acids / Bases |
pH
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A pocket calculator program for the solution of pH problems via the method of successive approximations Guida, Wayne C. 37. Bits and pieces, 14. A description of a pocket calculator program for the solution of pH problems via the method of successive approximations . Guida, Wayne C. J. Chem. Educ. 1983, 60, 101.
pH |
Acids / Bases |
Chemometrics
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Thermal buffers: An illustrative analogy Macomber, Roger S. An analogy between acid-base buffer behavior and the thermal behavior of a two-phase (solid and liquid) system. Macomber, Roger S. J. Chem. Educ. 1979, 56, 710.
Acids / Bases |
pH
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The standardization of pH meters: A comparison of procedures for different types of instruments Lund, Walter Discusses the various approaches to the standardization of pH meters and the limitations of the various procedures. Lund, Walter J. Chem. Educ. 1979, 56, 129.
Instrumental Methods |
pH |
Laboratory Equipment / Apparatus |
Laboratory Management |
Calibration |
Acids / Bases
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The pH concept Kolb, Doris Reviews pH, the pH scale, pH calculations, buffered solutions, and measuring pH. Kolb, Doris J. Chem. Educ. 1979, 56, 49.
pH |
Aqueous Solution Chemistry |
Acids / Bases
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Buffer effect demonstration on the overhead projector Hobe, Paul G., Jr. Illustrates that one drop of dilute acid or base will change the pH of water by a large amount while larger amounts can be added to a buffer solution before any change is noted. Hobe, Paul G., Jr. J. Chem. Educ. 1979, 56, 47.
Acids / Bases |
pH
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Intuitive and general approach to acid-base equilibrium calculations Felty, Wayne L. The purpose of this paper is to show that the usual intuitive approach used in general chemistry can be readily extended without introduction of additional, sophisticated concepts to give the general, exact expression and to point out the pedagogical advantage of its use. Felty, Wayne L. J. Chem. Educ. 1978, 55, 576.
Acids / Bases |
Equilibrium |
Chemometrics
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Conjugate acid-base mixtures in the general chemistry laboratory. A comprehensive buffer experiment Wiger, George R.; de la Camp, Ulrich A very exact and detailed procedure for a comprehensive buffer experiment is presented in this paper. Wiger, George R.; de la Camp, Ulrich J. Chem. Educ. 1978, 55, 401.
Acids / Bases |
pH
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Emphasis on acids and bases J. Chem. Educ. Staff Considers the acidity or basicity in soils and natural waters; the acid-base balance in body chemistry; acidic and basic foods; the approximate pH values of common fluids; examples of acidic, basic, and neutral drugs; and the commercial preparation of nitric acid. J. Chem. Educ. Staff J. Chem. Educ. 1977, 54, 626.
Acids / Bases |
Water / Water Chemistry |
Food Science |
Applications of Chemistry |
pH |
Drugs / Pharmaceuticals
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Effect of Ionic Strength on Equilibrium Constants Seymour, M. D.; Fernando, Quintus Involves the determination of the acid dissociation constant of bromcresol green by a spectrophotometric method; using a graphing calculator, each student can perform the laboratory work and obtain his own data set. Seymour, M. D.; Fernando, Quintus J. Chem. Educ. 1977, 54, 225.
Acids / Bases |
Aqueous Solution Chemistry |
Equilibrium |
pH
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An Effective demonstration of the behavior of indicators and biochemicals in buffers Lerman, Charles L. The author has found this demonstration of buffers useful for both freshman level courses and as a refresher in biochemistry. Lerman, Charles L. J. Chem. Educ. 1976, 53, 634.
Acids / Bases |
pH
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A new buffer demonstration Friedman, Norman An Alka-Seltzer tablet in water is used as a buffer system and its resistance to changes in pH are compared to solutions of buffered aspirin and aspirin. Friedman, Norman J. Chem. Educ. 1975, 52, 605.
Acids / Bases |
pH |
Consumer Chemistry
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A new chemistry program for nursing and allied health students Stanitski, Conrad L.; Sears, Curtis T., Jr. Outlines and discusses the topics considered in a chemistry program for nursing and allied health students. Stanitski, Conrad L.; Sears, Curtis T., Jr. J. Chem. Educ. 1975, 52, 226.
Nonmajor Courses |
Applications of Chemistry |
Medicinal Chemistry |
Oxidation / Reduction |
Catalysis |
Acids / Bases |
pH |
Metabolism |
Drugs / Pharmaceuticals
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Solubility and pH Calculations (Butler, James N.) Ramette, R. W.
Ramette, R. W. J. Chem. Educ. 1964, 41, A970.
Aqueous Solution Chemistry |
Precipitation / Solubility |
pH |
Acids / Bases |
Chemometrics |
Enrichment / Review Materials
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Overhead projection with the pH meter Hoff, Darrel B. Describes a means of projecting an image of a pH meter. Hoff, Darrel B. J. Chem. Educ. 1964, 41, 662.
pH |
Acids / Bases |
Aqueous Solution Chemistry |
Titration / Volumetric Analysis
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A versatile and inexpensive pH recording electrometer Malmstadt, H. V. Presents the design and operation of a modular pH unit with automatic temperature compensation. Malmstadt, H. V. J. Chem. Educ. 1964, 41, 148.
pH |
Acids / Bases |
Aqueous Solution Chemistry
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Easily prepared wide range buffer series Carmody, Walter R. A series of buffers with pH values ranging from 2.0 to 12.0 that requires the preparation of only two stock solutions and requires only three common chemicals. Carmody, Walter R. J. Chem. Educ. 1961, 38, 559.
Aqueous Solution Chemistry |
Acids / Bases |
pH |
Laboratory Management
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pH meters (continued) Lewin, S. Z. Considers the standardization, calibration, and testing of pH meters, as well as Beckman pH meters. Lewin, S. Z. J. Chem. Educ. 1959, 36, A595.
Instrumental Methods |
pH |
Acids / Bases |
Aqueous Solution Chemistry |
Calibration
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Potentiometric measurements of equilibria: In general chemistry laboratory Chesick, J. P.; Patterson, Andrew, Jr. The authors describe an experiment in which the solubility product of silver chloride, the ionization constant of the silver-ammonia complex, and the ionization constant of acetic acid can be determined with one afternoon of work. Chesick, J. P.; Patterson, Andrew, Jr. J. Chem. Educ. 1959, 36, 496.
Electrochemistry |
Equilibrium |
Precipitation / Solubility |
Aqueous Solution Chemistry |
Acids / Bases
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Research project for general chemistry laboratory Schwolow, Jean In order to modify the routine experiment in which students know the answers before ever entering the laboratory, freshmen were presented with a simulated research project connected with acids, bases, and pH measurements. Schwolow, Jean J. Chem. Educ. 1958, 35, 416.
Undergraduate Research |
Acids / Bases |
pH |
Aqueous Solution Chemistry
|
Amphoteric molecules, ions and salts Davidson, David It is the aim of this paper to call attention to the splendid opportunity amphoteric substances afford for the teaching of acid-base principles. Davidson, David J. Chem. Educ. 1955, 32, 550.
Molecular Properties / Structure |
Acids / Bases |
pH |
Aqueous Solution Chemistry
|
pH approximations McBay, Arthur J. Describes the use of data from tables to approximate pH values. McBay, Arthur J. J. Chem. Educ. 1952, 29, 526.
pH |
Acids / Bases |
Aqueous Solution Chemistry
|
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