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68 Assessment Questions
40 Journal Articles
12 Other Resources
Assessment Questions: First 3 results
Stoichiometry : CalcWeightPercent (8 Variations)
What is the weight percent of oxygen in LiHCO3?
Stoichiometry |
Chemometrics
Stoichiometry : CalcPercentYield (8 Variations)
When copper is heated in air, copper(II) oxide is formed. In a given experiment, 1.50 g copper was heated to yield 1.76 g copper(II) oxide. What is the percent yield?
Stoichiometry |
Chemometrics
Stoichiometry : CalcPercentPurity (4 Variations)
To test the purity of calcium sulfate, you dissolve a 4.56g sample in water and add oxalic acid to precipitate out calcium oxalate. If 3.45g of precipitate forms, what is the percent purity of the calcium sulfate?

CaSO4(aq) + H2C2O4(aq) CaC2O4(s) + H2SO4(aq)


Stoichiometry |
Chemometrics
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Journal Articles: First 3 results.
Pedagogies:
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 first-semester 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
Cross-Proportions: A Conceptual Method for Developing Quantitative Problem-Solving Skills  Elzbieta Cook and Robert L. Cook
This paper focuses attention on the cross-proportion (C-P) 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 lower-level chemistry courses. In recent years, the DA method has emerged as the only problem solving mechanism offered to high-school and general chemistry students in contemporary textbooks, replacing more conceptual methods, C-P included.
Cook, Elzbieta; Cook, Robert L. J. Chem. Educ. 2005, 82, 1187.
Learning Theories |
Stoichiometry |
Chemometrics |
Student-Centered Learning
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Other Resources: First 3 results
Handling Large and Small Numbers  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Chemometrics
Measurements, Quantities, and Unity Factors  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Chemometrics
Errors in Measurement  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Chemometrics
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