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Journal Articles: 20 results
The Correlation of Binary Acid Strengths with Molecular Properties in First-Year Chemistry  Travis D. Fridgen
This article replaces contradictory explanations for the strengths of different binary acids in first-year chemistry textbooks with a single explanation that uses a BornHaber cycle involving homolyic bond dissociation energies, electron affinities, and ion solvation enthalpies to rationalize trends in the strengths of all binary acids.
Fridgen, Travis D. J. Chem. Educ. 2008, 85, 1220.
Acids / Bases |
Atomic Properties / Structure |
Aqueous Solution Chemistry |
Physical Properties |
Thermodynamics
Equilibrium Constants and Water Activity Revisited  David Keeports
Subtle arguments based upon the use of chemical potentials show that numerical values of solute molar concentrations can be used as good approximate activities in equilibrium calculations for reactions involving dilute solutions.
Keeports, David. J. Chem. Educ. 2006, 83, 1290.
Acids / Bases |
Aqueous Solution Chemistry |
Equilibrium |
Water / Water Chemistry |
Alcohols
Equilibrium Constants and Water Activity Revisited  E. J. Behrman
In teaching the effects of structure on acid strength, it is useful to compare, inter alia, water with primary alcohols.
Behrman, E. J. J. Chem. Educ. 2006, 83, 1290.
Acids / Bases |
Aqueous Solution Chemistry |
Equilibrium |
Water / Water Chemistry |
Alcohols
Equilibrium Constants and Water Activity Revisited  E. J. Behrman
In teaching the effects of structure on acid strength, it is useful to compare, inter alia, water with primary alcohols.
Behrman, E. J. J. Chem. Educ. 2006, 83, 1290.
Acids / Bases |
Aqueous Solution Chemistry |
Equilibrium |
Water / Water Chemistry |
Alcohols
Factors That Influence Relative Acid Strength in Water: A Simple Model  Michael J. Moran
The pKa's of diverse aqueous acids HA correlate well with the sum of two gas-phase properties: the HA bond-dissociation enthalpy and the electron affinity of the A radical. It is suggested that rather than bond strength alone or bond polarity, the sum of the enthalpies of these two steps is a fairly good indicator of relative acidity.
Moran, Michael J. J. Chem. Educ. 2006, 83, 800.
Acids / Bases |
Aqueous Solution Chemistry |
Atomic Properties / Structure |
Free Radicals
Acids and Bases in Layers: The Stratal Structure of an Ancient Topic  Wobbe de Vos and Albert Pilot
This article identifies and discusses six successive "layers" that can be recognized in chapters on acids and bases in general chemistry textbooks, each the result of what once was a modernization; the cumulative result of these layers has become problematic, and some learning problems that students have when studying acids and bases become comprehensible when viewed from this perspective.
de Vos, Wobbe; Pilot , Albert. J. Chem. Educ. 2001, 78, 494.
Acids / Bases |
Learning Theories |
Lewis Acids / Bases |
Brønsted-Lowry Acids / Bases
Why and How To Teach Acid-Base Reactions without Equilibrium  Terry S. Carlton
A stepwise method enables students to predict which acid-base reactions occur when two solutions are mixed. The complexities of equilibrium are avoided by treating reactions as all-or-none and by providing a table of acids in order of strength.
Carlton, Terry S. J. Chem. Educ. 1997, 74, 939.
Learning Theories |
Acids / Bases |
Aqueous Solution Chemistry |
Equilibrium
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
Pictorial Analogies XI: Concentrations and Acidity of Solutions  Fortman, John J.
Visual analogies of the concentration of a solution, strength of a solution, super saturated solution, conjugate acid-base pairs, and inverse relationship between pH and [H+] and pOH and [OH-].
Fortman, John J. J. Chem. Educ. 1994, 71, 430.
Solutions / Solvents |
Aqueous Solution Chemistry |
Acids / Bases |
pH
Acid and base dissociation constants of water and its associated ions  de Lange, A. M.; Potgieter, J. H.
By applying the Bronsted-Lowry concept of acids and bases, one can derive acid and base dissociation constants for water and its associated ions.
de Lange, A. M.; Potgieter, J. H. J. Chem. Educ. 1991, 68, 304.
Acids / Bases |
Equilibrium |
pH |
Brønsted-Lowry Acids / Bases
Correct equilibrium constants for water  Baldwin, W. George; Burchill, C. Eugene
Disagreement with the numerical values assigned to equilibrium constants.
Baldwin, W. George; Burchill, C. Eugene J. Chem. Educ. 1987, 64, 1067.
Equilibrium |
Water / Water Chemistry |
Acids / Bases |
Aqueous Solution Chemistry
An analogy for the leveling effect  Macomber, Roger S.
Analogy to help students understand the leveling effect of certain solvents.
Macomber, Roger S. J. Chem. Educ. 1984, 61, 128.
Acids / Bases |
Aqueous Solution Chemistry |
Solutions / Solvents |
Brønsted-Lowry Acids / Bases
Empirical pKb and pKa for nonmetal hydrides from periodic table position  Bayless, Philip L.
The equation in this article was developed by the author. It estimates the aqueous pKa for certain acids to an average deviation of 0.1pK unit for those with experimentally determined values and agrees with experimentally determined values, and as well as with estimates for those too weak or too strong to be measured.
Bayless, Philip L. J. Chem. Educ. 1983, 60, 546.
Acids / Bases |
pH |
Chemometrics
Strong and weak acids and bases  Deck, Joseph C.
The designations "strong" and "weak" are used in various ways, and often with respect to the same compound in different situations.
Deck, Joseph C. J. Chem. Educ. 1979, 56, 814.
Acids / Bases |
Equilibrium |
Aqueous Solution Chemistry
Chemistry tutorial programs on display terminals  Heit, M.; Jones, W. E.; Wasson, John

Heit, M.; Jones, W. E.; Wasson, John J. Chem. Educ. 1979, 56, 787.
Acids / Bases |
pH
Quality levels and the Brønsted theory  Bank, Evelyn
Maintaining standards for a diversity of students and teaching hydrolysis with the Bronsted-Lowry theory. [Debut]
Bank, Evelyn J. Chem. Educ. 1977, 54, 548.
Acids / Bases |
Aqueous Solution Chemistry |
Brønsted-Lowry Acids / Bases
Titration without burets  Gaddis, Shirley W.
Describes the use of small polyethylene bottles to measure the acid strength of vinegar.
Gaddis, Shirley W. J. Chem. Educ. 1959, 36, 290.
Acids / Bases |
Aqueous Solution Chemistry |
Titration / Volumetric Analysis |
Qualitative Analysis |
Laboratory Equipment / Apparatus
Indicators and the basis for their use  Gorin, George
Describes the method for selecting appropriate indicators and the teaching of this subject.
Gorin, George J. Chem. Educ. 1956, 33, 318.
Dyes / Pigments |
Titration / Volumetric Analysis |
Acids / Bases |
Aqueous Solution Chemistry |
Quantitative Analysis |
pH
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
Electronegativities in inorganic chemistry. III  Sanderson, R. T.
The purpose of this paper is to illustrate some of the practical applications of electronegativities and charge distribution.
Sanderson, R. T. J. Chem. Educ. 1954, 31, 238.
Atomic Properties / Structure |
Covalent Bonding |
Acids / Bases