Journal Articles: 40 results 

Using Pooled Data and Data Visualization To Introduce Statistical Concepts in the General Chemistry Laboratory Robert J. Olsen This article describes how data pooling and visualization can be employed in the firstsemester general chemistry laboratory to introduce core statistical concepts such as central tendency and dispersion of a data set. Olsen, Robert J. J. Chem. Educ. 2008, 85, 544.
Chemometrics 
Stoichiometry

The Importance and Efficacy of Using Statistics in the High School Chemistry Laboratory Paul S. Matsumoto This paper describes some statistical concepts and their application to various experiments used in high school chemistry. Matsumoto, Paul S. J. Chem. Educ. 2006, 83, 1649.
Chemometrics 
Mathematics / Symbolic Mathematics

CrossProportions: A Conceptual Method for Developing Quantitative ProblemSolving Skills Elzbieta Cook and Robert L. Cook This paper focuses attention on the crossproportion (CP) method of mathematical problem solving, which was once widely used in chemical calculations. We propose that this method regain currency as an alternative to the dimensional analysis (DA) method, particularly in lowerlevel chemistry courses. In recent years, the DA method has emerged as the only problem solving mechanism offered to highschool and general chemistry students in contemporary textbooks, replacing more conceptual methods, CP included. Cook, Elzbieta; Cook, Robert L. J. Chem. Educ. 2005, 82, 1187.
Learning Theories 
Stoichiometry 
Chemometrics 
StudentCentered Learning

CHEMiCALC (4000161) and CHEMiCALC Personal Tutor (4001108), Version 4.0 (by O. Bertrand Ramsay) Scott White and George Bodner CHEMiCALC is a thoughtfully designed software package developed for use by high school and general chemistry students, who will benefit from the personal tutor mode that helps to guide them through unit conversion, empirical formula, molecular weight, reaction stoichiometry, and solution stoichiometry calculations. White, Scott; Bodner, George M. J. Chem. Educ. 1999, 76, 34.
Chemometrics 
Nomenclature / Units / Symbols 
Stoichiometry

Precision and Accuracy (the authors reply, 2) Midden, W. Robert Roundingoff rules and significant figures. Midden, W. Robert J. Chem. Educ. 1998, 75, 971.
Chemometrics

Precision and Accuracy (the authors reply, 1) Guare, Charles J. Roundingoff rules and significant figures. Guare, Charles J. J. Chem. Educ. 1998, 75, 971.
Chemometrics

Precision and Accuracy (3) Rustad, Douglas Roundingoff rules and significant figures. Rustad, Douglas J. Chem. Educ. 1998, 75, 970.
Chemometrics

Precision and Accuracy (1) Sykes, Robert M. Standard procedures for determining and maintaining significant figures in calculations. Sykes, Robert M. J. Chem. Educ. 1998, 75, 970.
Chemometrics

Those Baffling Subscripts Arthur W. Friedel and David P. Maloney Study of the difficulties students have in interpreting subscripts correctly and distinguishing atoms from molecules when answering questions and solving problems. Friedel, Arthur W.; Maloney, David P. J. Chem. Educ. 1995, 72, 899.
Nomenclature / Units / Symbols 
Stoichiometry 
Chemometrics

REACT: Exploring Practical Thermodynamic and Equilibrium Calculations Ramette, Richard W. Description of REACT software to balance complicated equations; determine thermodynamic data for all reactants and products; calculate changes in free energy, enthalpy, and entropy for a reaction; and find equilibrium conditions for the a reaction. Ramette, Richard W. J. Chem. Educ. 1995, 72, 240.
Stoichiometry 
Equilibrium 
Thermodynamics 
Chemometrics

Symbolic Algebra and Stoichiometry DeToma, Robert P. Applying symbolic algebra (instead of the factorlabel method) to stoichiometry calculations. DeToma, Robert P. J. Chem. Educ. 1994, 71, 568.
Chemometrics 
Nomenclature / Units / Symbols

AnswerSheets Cornelius, Richard Review of a spreadsheetbased program that has modules on significant figures, VSEPR structures, stoichiometry, and unit conversions. Cornelius, Richard J. Chem. Educ. 1993, 70, 460.
VSEPR Theory 
Stoichiometry 
Chemometrics

AnswerSheets Cornelius, Richard Review of a spreadsheetlike program that includes modules on significant figures, conversions, stoichiometry, and VSEPR structures. Cornelius, Richard J. Chem. Educ. 1993, 70, 387.
VSEPR Theory 
Stoichiometry 
Chemometrics

Concept learning versus problem solving: There is a difference Nakhleh, Mary B.; Mitchell, Richard C. Previous studies indicate that there is little connection between algorithmic problem solving skills and conceptual understanding. The authors provide some ways to evaluate students along a continuum of lowhigh algorithmic and conceptual problem solving skills. The study shows that current lecture method teaches students to solve algorithms rather than teaching chemistry concepts. Nakhleh, Mary B.; Mitchell, Richard C. J. Chem. Educ. 1993, 70, 190.
Chemometrics 
Learning Theories 
StudentCentered Learning

On the chemically impossible "other" roots in equilibrium calculations, II Ludwig, Oliver G. In a previous paper the author described, using mathematics accessible to students, how an equilibrium calculation leading to a quadratic equation may be shown to have but one "chemical" root. The present work extends this demonstration to some reactions leading to cubic equations. Ludwig, Oliver G. J. Chem. Educ. 1992, 69, 884.
Chemometrics 
Equilibrium

A carbonate project introducing students to the chemistry lab Dudek, Emily A description of a first semester general chemistry laboratory that helps acquaint students with a large variety of chemistry laboratory procedures. Dudek, Emily J. Chem. Educ. 1991, 68, 948.
Chemometrics 
Gravimetric Analysis 
Titration / Volumetric Analysis 
Separation Science

The use of "marathon" problems as effective vehicles for the presentation of general chemistry lectures Burness, James H. A marathon problem is a long, comprehensive, and difficult problem that ties together many of the topics in a chapter and that is solved together by the instructor and students. Sample problems are included and advantages and disadvantages of this approach are discussed. Burness, James H. J. Chem. Educ. 1991, 68, 919.
Chemometrics

Developmental instruction: Part II. Application of the Perry model to general chemistry Finster, David C. The Perry scheme offers a framework in which teachers can understand how students make meaning of their world, and specific examples on how instructors need to teach these students so that the students can advance as learners. Finster, David C. J. Chem. Educ. 1991, 68, 752.
Learning Theories 
Atomic Properties / Structure 
Chemometrics 
Descriptive Chemistry

A stoichiometric journey Molle, Brian A story to help students overcome some of the difficulties they encounter in stoichiometry calculations. Molle, Brian J. Chem. Educ. 1989, 66, 561.
Stoichiometry 
Chemometrics

Chemistry according to ROF (Fee, Richard) Radcliffe, George; Mackenzie, Norma N. Two reviews on a software package that consists of 68 programs on 17 disks plus an administrative disk geared toward acquainting students with fundamental chemistry content. For instance, acids and bases, significant figures, electron configuration, chemical structures, bonding, phases, and more. Radcliffe, George; Mackenzie, Norma N. J. Chem. Educ. 1988, 65, A239.
Chemometrics 
Atomic Properties / Structure 
Equilibrium 
Periodicity / Periodic Table 
Periodicity / Periodic Table 
Stoichiometry 
Physical Properties 
Acids / Bases 
Covalent Bonding

Let's separate theories from calculations Freilich, Mark B. This author writes in a 'provocative opinion' article challenging the readers to think about heavily emphasizing 'thought problems' in chemistry and allowing students to master those before throwing calculations into the mix. Freilich, Mark B. J. Chem. Educ. 1988, 65, 442.
Chemometrics

Reaction stoichiometry and suitable "coordinate systems" Tykodi, R. J. Methods for dealing with problems involving reactions stoichiometry: unitize and scale up, factorlabel procedure, de Donder ratios, and titration relations. Tykodi, R. J. J. Chem. Educ. 1987, 64, 958.
Stoichiometry 
Titration / Volumetric Analysis 
Chemometrics

Hard ways and easy ways Schwartz, Lowell M. Two examples of common general chemistry calculations and different approaches ("hard" and "easy") to solving them. Schwartz, Lowell M. J. Chem. Educ. 1987, 64, 698.
Stoichiometry 
Chemometrics

On writing equations Campbell, J.A. The author presents a very direct approach to writing complicated equations without using a matrix approach. Campbell, J.A. J. Chem. Educ. 1986, 63, 63.
Stoichiometry 
Chemometrics

A LAP on moles: Teaching an important concept Ihde, John The objective of the Learning Activity Packet on moles include understanding the basic concept of the mole as a chemical unit, knowing the relationships between the mole and the atomic weights in the periodic table, and being able to solve basic conversion problems involving grams, moles, atoms, and molecules. [Debut] Ihde, John J. Chem. Educ. 1985, 62, 58.
Stoichiometry 
Nomenclature / Units / Symbols 
Chemometrics 
Atomic Properties / Structure 
Molecular Properties / Structure 
Periodicity / Periodic Table

The Elements of Style in Chemistry, A Computerassisted Instruction Supported Text (Beatty, James W.; Beatty, James J.) Crawford, Victor A. Intended to support students who have trouble solving important types of problems in chemistry. Crawford, Victor A. J. Chem. Educ. 1984, 61, A27.
Enrichment / Review Materials 
Chemometrics

The factorlabel method: Is it all that great? Navidi, Marjorie H.; Baker, A. David The development of reasoning skills in chemistry is better achieved by postponing the introduction of the factorlabel method. Navidi, Marjorie H.; Baker, A. David J. Chem. Educ. 1984, 61, 522.
Chemometrics

Reflections upon mathematics in the introductory chemistry course Goodstein, Madeline P. It is the purpose of this paper to call attention to the lack of mathematical competence by chemistry students and to invite consideration of one conceptual scheme which may be used to unify the mathematical approach. Goodstein, Madeline P. J. Chem. Educ. 1983, 60, 665.
Chemometrics 
Gases

Titration calculations a problemsolving approach Waddling, Robin E. L. This author shares a strategy for helping students who might be struggling with understanding how to calculate and understand titration data. Waddling, Robin E. L. J. Chem. Educ. 1983, 60, 230.
Acids / Bases 
Titration / Volumetric Analysis 
Chemometrics

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

Basic mathematics for beginning chemistry (Goldish, Dorthoy M.) Ellison, Herbert R.
Ellison, Herbert R. J. Chem. Educ. 1981, 58, A65.
Chemometrics 
Mathematics / Symbolic Mathematics 
Enrichment / Review Materials

Think Wheeler, S. J., James D. Students have an easy enough time crunching numbers, but it is alarming how little they understand the concepts behind the numbers. Students should not be making remarks such as, "If they keep changing how they write the problems, how am I supposed to know how to solve them?" Wheeler, S. J., James D. J. Chem. Educ. 1981, 58, 1004.
Learning Theories 
Chemometrics

A "road map" problem for freshman chemistry students Burness, James H. Question suitable for a takehome type of exam. Burness, James H. J. Chem. Educ. 1980, 57, 647.
Gases 
Solutions / Solvents 
Stoichiometry 
Nomenclature / Units / Symbols 
Chemometrics

Adopting SI units in introductory chemistry Davies, William G.; Moore, John W. Conventions associated with SI units, conversion relationships commonly used in chemistry, and a roadmap method for solving stoichiometry problems. Davies, William G.; Moore, John W. J. Chem. Educ. 1980, 57, 303.
Nomenclature / Units / Symbols 
Chemometrics

The chemical equation. Part I: Simple reactions Kolb, Doris A chemical equation is often misunderstood by students as an "equation" that is used in chemistry. However, a more accurate description is that it is a concise statement describing a chemical reaction expressed in chemical symbolism. Kolb, Doris J. Chem. Educ. 1978, 55, 184.
Stoichiometry 
Chemometrics 
Nomenclature / Units / Symbols 
Reactions

A pregeneral chemistry course for the underprepared student Krannich, Larry K.; Patick, David; Pevear, Jesse Outline and evaluation of a course in chemical problem solving. Krannich, Larry K.; Patick, David; Pevear, Jesse J. Chem. Educ. 1977, 54, 730.
Enrichment / Review Materials 
Chemometrics

A logic diagram for teaching stoichiometry Tyndall, John R. Presents a diagram that the author found helpful in teaching the fundamentals of stoichiometry. Tyndall, John R. J. Chem. Educ. 1975, 52, 492.
Stoichiometry 
Chemometrics

Chemical calculations (Benson, Sidney W.) Melgaard, Kennett G.
Melgaard, Kennett G. J. Chem. Educ. 1972, 49, A98.
Chemometrics

Grading the copper sulfide experiment Novick, Seymour The author recommends a more liberal analysis in grading the copper sulfide experiment. Novick, Seymour J. Chem. Educ. 1970, 47, 785.
Stoichiometry 
Chemometrics

A formula for indirect gravimetry Fiekers, B. A. Derivation of a formula for indirect gravimetry and application to a sample problem. Fiekers, B. A. J. Chem. Educ. 1956, 33, 575.
Gravimetric Analysis 
Chemometrics 
Quantitative Analysis

