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Other Resources: 62 results
Weak acids in foods - pH and beyond  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
pH |
Nutrition
The pH of Solutions of Weak Bases in Foods  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Nutrition |
pH
Conjugate Acid-Base Pairs and pH in Foods - From cleaning and disinfection to microbial nutrition and protein modification  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
pH |
Nutrition
ChemPaths 104 M Apr 11  John W. Moore
Today in Chem 104: * Lecture: pH; Acid-Base Equilibria; Ionization * Reading: Kotz: Ch. 17, Sec. 6-7 Moore: Ch. 16, Sec. 7-8 * Homework #10 due by 11:55 PM F Apr 15 * Quiz in second discussion section this week * Lab this week is #6, Acid and Base Solutions
pH |
Acids / Bases |
Equilibrium
Principal Species and pH  Robert M. Hanson
Calculates concentrations of principal species in solutions using JavaScript. You can specify whether "1st-year" methods or mass-charge balance methods are used in the calculations. Solutions can be chosen from the included set or you can design your own.
Acids / Bases |
Titration / Volumetric Analysis |
pH |
Solutions / Solvents
Connected Chemistry  Mike Stieff
Connected Chemistry, a novel learning environment for teaching chemistry, is appropriate for use in both high school and undergraduate chemistry classrooms. Connected Chemistry comprises several molecular simulations designed to enable instructors to teach chemistry using the perspective of emergent phenomena. That is, it allows students to see observed macro-level chemical phenomena, like many other scientific phenomena, as resultant from the interactions of many individual agents on a micro-level. This perspective is especially appropriate to the study of chemistry where the interactions between multitudes of molecules on the atomic level give rise to the macro-level concepts that students study in the classroom. Connected Chemistry comprises molecular simulations embedded in the NetLogo modeling software (1). The collection contains several predesigned simulations of closed chemical systems to teach specific chemistry concepts. Currently, Connected Chemistry contains models for teaching Brønsted Lowry acid base theory, enzyme kinetics, radical polymerization, buffer chemistry, kinetics, chemical equilibrium, and crystallization. Instructors and students can individually tailor the predesigned simulations or generate new simulations as they are needed in the context of a particular lesson, classroom, or department.
Acids / Bases |
Gases |
Kinetics |
Nuclear / Radiochemistry |
pH |
Titration / Volumetric Analysis |
Polymerization |
Equilibrium |
Catalysis
Introduction of Aquatic Chemistry in General Chemistry Curriculum;Spreadsheet Calculation Approaches  Chulsung Kim
Fundamental aquatic chemistry concepts may be introduced in general chemistry classes by computing ionization fractions and buffer intensity of aqueous phase carbonate systems. This Excel spreadsheet may used to build graphic presentations of a titration curve, distribution diagram, and buffer intensity as a function of pH. Accompanying activities are designed to enhance the concepts of acid-base equilibrium through exploring the relationship between pKa/pKb, pH of the solution, ionization fractions, and buffer intensity, and to exercise students graphing skills.
Acids / Bases |
Aqueous Solution Chemistry |
pH |
Titration / Volumetric Analysis |
Water / Water Chemistry |
Equilibrium
Acids (GCMP)  David M. Whisnant
Acids: this is a resource in the collection "General Chemistry Multimedia Problems". We will observe the reaction of sodium bicarbonate with three acid solutions. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases
Acids and Salts (GCMP)  David M. Whisnant
Acids and Salts: this is a resource in the collection "General Chemistry Multimedia Problems". This problem will explore a few properties of common acids and their salts. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases
Oxides (GCMP)  David M. Whisnant
Oxides: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will explore the properties of the oxides of a few elements. We will add samples of the oxides to universal indicator solution and learn about the acid-base character of the oxides. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases
Strong Acids (GCMP)  David M. Whisnant
Strong Acids: this is a resource in the collection "General Chemistry Multimedia Problems". This problem will explore the properties of common strong acids. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases
Acids and Bases (Netorials)  Rachel Bain, Mithra Biekmohamadi, Liana Lamont, Mike Miller, Rebecca Ottosen, John Todd, and David Shaw
Acids and Bases: this is a resource in the collection "Netorials". In this module there is an introduction to the chemical properties of acids and bases. Afterwards, the sections include topics such as Molecular Structures of Acids and Bases, Ionization constants, properties of salts, buffers and Lewis theory of Acids and Bases. The Netorials cover selected topics in first-year chemistry including: Chemical Reactions, Stoichiometry, Thermodynamics, Intermolecular Forces, Acids & Bases, Biomolecules, and Electrochemistry.
Acids / Bases
Universal Algorithm for Acid-Base Equilibrium Calculations  Pavol Tarapèík
These Microsoft Excel workbooks facilitate the calculation of the equilibrium composition of simple to complex acid-base systems. Three workbooks are available: 1. pH-mix calculates the equilibrium composition for any mixture of protolytes. 2. pH-titr calculates and presents titration curves. 3. pH-titrd calculates and presents titration curves with derivative curves included. The workbooks require only basic knowledge about Excel and almost no calculation abilities. However, they do require a description of chemical properties of the system components. Thus they allow students to concentrate on chemistry skills rather than laborious algebra and arithmetic.
Acids / Bases
Acids, Bases, Salts, and Ionization  
Volume 04, issue 06 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Acids / Bases
Acids, Bases and Salts  
Volume 05, issue 06 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Acids / Bases
ChemPaths 104 M Apr 4  John W. Moore
Today in Chem 104: * Lecture: Acids and Bases * Reading: Kotz: Ch. 17, Sec. 1-2 Moore: Ch. 16, Sec. 1-2 * Homework #9 due by 11:55 PM F Apr 8 * Quiz in second discussion section this week * Lab this week is #10, Chemical Equilibrium and Thermodynamics
Acids / Bases
ChemPaths 104 F Apr 8  John W. Moore
Today in Chem 104: * Lecture: Problem-Solving Session * Homework #9 due by 11:55 PM tonight
Acids / Bases
ChemPaths 104 W Apr 13  John W. Moore
Today in Chem 104: * Lecture: Structure and Acid-Base Strength; Buffers * Reading: Kotz: Ch. 17, Sec. 8, 10 Moore: Ch. 16, Sec.6; Ch. 17, Sec. 1,3 * Homework #10 due by 11:55 PM F Apr 15 * Quiz in second discussion section this week * Lab this week is #6, Acid and Base Solutions
Acids / Bases
Acid-Base Reactions  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
Acids  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
Bases  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
Strong Acids and Bases  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
Conjugate Acid-Base Pairs  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
Polyprotic Acids and Bases  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
Acids and Bases  American Chemical Society
ACS Science for Kids activities exploring acids and bases.
Acids / Bases
Polyprotic acids and bases in Foods  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Nutrition
Buffer solutions and the stability of food additives  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Equilibrium |
Nutrition
Buffer solutions and the production of food ingredients  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Equilibrium |
Nutrition
The effect of polyols on the pH of buffer solutions in foods  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Equilibrium |
Nutrition
Indicators in foods  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Natural Products
ChemPaths 104 W Apr 6  John W. Moore
Today in Chem 104: * Lecture: Bronsted Acids and Bases * Reading: Kotz: Ch. 17, Sec. 3-5 Moore: Ch. 16, Sec. 3-5 * Homework #9 due by 11:55 PM F Apr 8 * Quiz in second discussion section this week * Lab this week is #10, Chemical Equilibrium and Thermodynamics
Brønsted-Lowry Acids / Bases
Amphiprotic Species  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Amino Acids
Lewis Acids and Bases  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Lewis Acids / Bases
The pH of Solutions of Weak Acids  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium |
Acids / Bases
The pH of Solutions of Weak Bases  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium |
Acids / Bases
PH and pOH in Everyday Life  Tim Wendorff
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
pH
pH and pOH  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
pH
Ammonia (GCMP)  David M. Whisnant
Ammonia fountain: this is a resource in the collection "General Chemistry Multimedia Problems". In an ammonia fountain, a flask is filled with ammonia gas. A tube from the flask extends into a pan of water that contains phenolphthalein. When a rubber bulb full of water is squeezed, the water squirts into the flask. Water from the pan then is pushed into the flask and the indicator changes color. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases |
Aqueous Solution Chemistry
Buffer Solutions  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Aqueous Solution Chemistry
ChemPaths 104 F Apr 15  John W. Moore
Today in Chem 104: * Lecture: Titration; Lewis Acids and Bases * Reading: Kotz: Ch. 18, Sec. 3; Ch. 17, Sec. 9 Moore: Ch. 17, Sec. 2; Ch. 16, Sec. * Homework #10 due by 11:55 PM tonight
Lewis Acids / Bases |
Titration / Volumetric Analysis
Visualizing Numerical Methods (2)  William F. Coleman
These movies are designed to help students visualize various numerical approaches to evaluating functions or solving equations. The methods themselves may be familiar to students from their mathematics courses, but they may have forgotten the material or never made the connection between a statement such as "the derivative of a curve at a given point is the slope of the line tangent to the curve at that point" and the way that one might evaluate such a derivative. All of the movies have VCR-style controls that enable the student to step through them one frame at a time and to move backwards as well as forwards.
Chemometrics
A Method of Visual Interactive Regression  Michelle S. Kim, Maureen Burkart, Myung-Hoon Kim
Over the past decade many colleges and universities have placed increased emphasis on having students develop statistical and data analysis skills in a range of disciplines. Some institutions now require that all students complete at least one course with a strong component of data analysis, whether the data are from chemical experiments, the census, or some other source. As chemists, one of our concerns should be to ensure that students view data analysis as an integral part of any quantitative experiment, and, as far as possible, do not treat this process as a black box. The authors of A Method of Visual Interactive Regression, a spreadsheet application, have developed a visual approach to linear least-squares curve fitting that drives home the idea of minimizing the sum of the squares of the deviations in order to find the best fit to a set of data that are being described by a linear relationship. For many students these visualizations are likely to persist a great deal longer than the mathematical derivations of the equation for the slope and the intercept. The visualizations will provide a useful connection between a set of equations and the buttons on a calculator or the insertion of a trendline in a spreadsheet.
Chemometrics
Using Chemical Equations in Calculations in Biology  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Chemometrics
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
Chemical & Physical Change  American Chemical Society
Everything you see and touch has the ability to change. Sometimes substances change to form new substances. This is called a chemical change. Other times substances change but keep the same identity. This is called a physical change. Try these activities to learn more about chemical and physical change.
Acids / Bases |
Reactions |
Water / Water Chemistry |
Solutions / Solvents |
Consumer Chemistry
Netorials  
The Netorials cover selected topics in first-year chemistry including: Chemical Reactions, Stoichiometry, Intermolecular Forces, Acids & Bases, Biomolecules, and Electrochemistry.
Acids / Bases |
Stoichiometry |
Proteins / Peptides |
Enzymes |
Carbohydrates |
Nucleic Acids / DNA / RNA |
Lipids |
Oxidation / Reduction |
Noncovalent Interactions
Air-Solids, Liquids & Gases  American Chemical Society
ACS Science for Kids activities explore the properties of gases.
Atmospheric Chemistry |
Acids / Bases |
Reactions |
Applications of Chemistry |
Water / Water Chemistry |
Gases
PH and pOH in Food Color  Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
pH |
Natural Products
General Chemistry Multimedia Problems  David M. Whisnant
General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases |
Atomic Spectroscopy |
Calorimetry / Thermochemistry |
Isotopes |
Magnetic Properties |
Phases / Phase Transitions / Diagrams |
Surface Science |
Thermodynamics |
Equilibrium |
Oxidation / Reduction
Food  American Chemical Society
ACS Science for Kids activities that explore the chemical properties of foods.
Plant Chemistry |
Dyes / Pigments |
Lipids |
Proteins / Peptides |
Carbohydrates |
Molecular Properties / Structure |
Applications of Chemistry |
Nutrition |
Acids / Bases |
Chromatography
Interactive Spreadsheets  William F. Coleman
Interactive Excel spreadsheets display hard-to-understand concepts in statistics, quantum mechanics, physics, and more. Parameters are adjusted by clicking on easy-to-use buttons or by using numeric input boxes. Graphs, tables, and/or figures are then created reflecting the change in parameters.
Acids / Bases |
Crystal Field / Ligand Field Theory |
Group Theory / Symmetry |
Quantum Chemistry |
Statistical Mechanics |
Titration / Volumetric Analysis |
Coordination Compounds |
Enrichment / Review Materials
A Simple Technique for Simultaneous Smoothing and Integration of Data  P. Nikitas, C. Malliakas
Sample data are smoothed and then integrated by a function developed by the author. Integration results obtained by using different values of the function parameters are compared.
Computational Chemistry |
Chemometrics
Using Chemical Equations in Environmental Chemistry and Green Chemistry  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Chemometrics |
Green Chemistry
Characteristics of Materials  American Chemical Society
What makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.
Industrial Chemistry |
Physical Properties |
Reactions |
Consumer Chemistry |
Gases |
Carbohydrates |
Proteins / Peptides |
Crystals / Crystallography |
Water / Water Chemistry |
Plant Chemistry |
Dyes / Pigments |
Lipids |
Molecular Properties / Structure |
Applications of Chemistry |
Nutrition |
Acids / Bases |
Chromatography |
Magnetic Properties |
Metals |
Polymerization |
Solutions / Solvents |
Descriptive Chemistry |
Food Science
Some Unusual Applications of the "Error-bar" Feature in Excel Spreadsheets  Kieran F. Lim
Novel uses of the "error-bar" feature of spreadsheet packages in the areas of enzyme kinetics, vibrational spectroscopy, vibronic spectroscopy, and mass spectrometry are discussed. It is argued that using software features for purposes that were not envisioned by the programmers fosters flexibility and innovation.
Chemometrics |
Spectroscopy |
Enrichment / Review Materials
Equilibrium  Matthew Sandberg, Mike Bellamy
Using a visual approach, this applet is designed to help students learn to solve equilibrium calculations and also to help them gain a deeper understanding of the topic. It can be used by the instructor in the classroom as equilibrium topics are introduced. Sample exercises for students are included. The text is available in both English and Spanish.
Chemometrics |
Equilibrium |
Enrichment / Review Materials
Motion & Energy  American Chemical Society
ACS Science for Kids activities and assessments that explore aspects of motion and energy.
Applications of Chemistry |
Chemometrics |
Physical Properties
FT Digital Filtering  Ken Overway
This spreadsheet simulates Fourier Transform apodization filtering on a noisy signal that contains either white or an environmental noise source.
Mathematics / Symbolic Mathematics |
Chemometrics |
Enrichment / Review Materials
JavaScript Programs To Calculate Thermodynamic Properties Using Cubic Equations of State  Patrick J. Barrie
Cubic equations of state are widely used by chemists and chemical engineers to predict the thermodynamic properties of both pure substances and mixtures. In particular, these equations enable predictions concerning the temperature and pressure at which vapor liquid equilibrium occurs. These two educational JavaScript programs perform calculations using cubic equations of state and, equally importantly, explain how the calculations are performed.
Mathematics / Symbolic Mathematics |
Chemometrics |
Thermodynamics |
Equilibrium |
Enrichment / Review Materials
Graphing  American Chemical Society
ACS Science for Kids activities explore the aspects of recording scientific data and presenting that data in useful graphs.
Reactions |
Chemometrics |
Physical Properties |
Transport Properties |
Plant Chemistry