| Other Resources: 72 results |
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
|
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
|
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
|
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
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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
|
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
|
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
|
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
|
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
|
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
|
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
|
Nitrogen Oxides (GCMP) David M. Whisnant
Nitrogen Oxides: this is a resource in the collection "General Chemistry Multimedia Problems". Two of the most important nitrogen oxides, N2O4 and NO2, are in equilibrium with each other. We are interested in how this equilibrium shifts with temperature. 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.
Equilibrium
|
How Accurate Is the Steady State Approximation Lars Ole Haustedt, Jonathan M. Goodman
The steady-state approximation is commonly used in enzyme catalysis kinetics calculations, but how much error does the approximation introduce? This Java applet allows you to visually determine the accuracy of the steady-state and pre-equilibrium approximations.
Equilibrium
|
ChemPaths 104 W Mar 2 John W. Moore
Today in Chem 104:
* Lecture: Chemical Equilibrium
* Reading:
Kotz: Ch. 16, Sec. 1-2
Moore: Ch. 14, Sec. 1-2
* Homework #6 due by 11:55 pm F Mar 4
* Quiz #4 given in second discussion section this week
* Biomolecules Tutorial: Enzymes and Moodle Quiz due Today at 11:55 pm
Equilibrium
|
ChemPaths 104 F Mar 4 John W. Moore
Today in Chem 104:
* Lecture: Problem-Solving Session
* No assigned reading for today.
* Homework #6 due by 11:55 pm Today!
Equilibrium
|
ChemPaths 104 M Mar 7 John W. Moore
Today in Chem 104:
* Lecture: Chemical Equilibrium
* Reading:
Kotz: Ch. 16, Sec. 3-5
Moore: Ch. 14, Sec. 3-5
* Homework #7 due by 11:55 pm F Mar 11
* Quiz #5 given in second discussion section this week.
Equilibrium
|
ChemPaths 104 W Mar 9 John W. Moore
Today in Chem 104:
* Lecture: Chemical Equilibrium
* Reading:
Kotz: Ch. 16, Sec.6
Moore: Ch. 14, Sec. 6, 8
* Homework #7 due by 11:55 pm F Mar 11
* Quiz #5 given in second discussion section this week.
Equilibrium
|
ChemPaths 104 F Mar 11 John W. Moore
Today in Chem 104:
* Lecture: Problem-Solving Session
* No assigned reading for today.
* Homework #7 due by 11:55 pm Today!
Equilibrium
|
Equilibrium Constants Revisited Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium
|
The Equilibrium State Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium
|
The Equilibrium Constant Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium
|
The Law of Chemical Equilibrium Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium
|
Calculating the Extent of a Reaction Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium
|
Successive Approximation Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium
|
Effect of Adding a Reactant or Product Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium
|
The Molecular View of Equilibrium Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
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
|
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
|
Contrail. A Module from the Physical Chemistry On-Line Project Franklin M. C. Chen
The condensation trail, or contrail, that trails behind a jet plane is an everyday observable phenomenon. These manmade cirrus clouds can persist for hours, or even days and can spread over thousands of square kilometers. This is a concern because clouds are major variables that control Earth's atmospheric temperature and climate. Understanding the impact of contrails on Earth's climate is an active area of research. Further, contrail formation can be examined in terms of the operative thermodynamic phenomena. The process of contrail formation involves combustion, cooling, and ice formation, all common topics in the undergraduate physical chemistry curriculum. The project when it is subdivided into separate manageable subjects is a good, comprehensive exercise for physical chemistry students.
Thermodynamics |
Equilibrium
|
Predicting the Direction of a Reaction Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium |
Thermodynamics
|
Le Chatelier's Principle Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Reactions |
Equilibrium
|
The Effect of a Change in Pressure Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Reactions |
Equilibrium
|
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
|
Calcium tartrate and treatment of wine waste-waters Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Precipitation / Solubility |
Equilibrium
|
The Equilibrium Constant in Terms of Pressure Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium |
Physical Properties
|
The Solubility Product Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Precipitation / Solubility |
Equilibrium
|
Vapor-Liquid Equilibrium Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium |
Phases / Phase Transitions / Diagrams
|
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
|
Ionic Equilibria in Aqueous Solutions in Foods Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium |
Nutrition |
Aqueous Solution 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
|
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
|
Computer Simulations of Salt Solubility Victor M. S. Gil, João C. M. Paiva
Computer Simulations of Salt Solubility provides an animated, visual interpretation of the different solubilities of related salts based on simple entropy changes associated with dissolution: configurational disorder and thermal disorder. This animation can also help improve students conceptual understanding of chemical equilibrium before any quantitative interpretation of equilibrium constants is attempted.
Computational Chemistry |
Solutions / Solvents |
Thermodynamics |
Equilibrium |
Precipitation / Solubility
|
