Curated OER
The Influence of Initiator Concentration on the Molecular Weight of Polystyrene
This in-depth organic chemistry lab walks learners through an investigation of the effect of initiator concentration on the resulting molecular weight of polystyrene. It is important that you use this instructional activity with...
Curated OER
Molar Mass
Only three slides comprise this collection. The first defines molecular weight and molar mass. The second lists the molar mass and number of particles in a mole of several substances. The third is a chart depicting a chemical reaction...
Curated OER
A Whiff of Danger
Public health trainees read and write a summary of the article, "A Whiff of Danger". The article is not available through the link, but can be found on the National Center for Biotechnology Information website. After summarizing,...
Curated OER
Ideal Gas Law
In this chemistry worksheet, students write two forms of the ideal gas law. Then they identify the size and units of the ideal gas law. Students also solve the equations for each ideal gas law.
Curated OER
Diffusion
Students investigate diffusion using different solutions of chemicals placed in agar dishes. In this diffusion lesson plan, students observe 3 demonstrations of diffusion using perfume, food coloring in water and sugar cubes in water....
Curated OER
The Mole
In this moles worksheet, students read about mole and learn how to calculate the number of moles in specific mass of compounds. This worksheet has 14 problems to solve.
Curated OER
Chemistry: Chemical Reaction
In this chemical reactions worksheet, students name the reactants and products, balance the equation, calculate the molecular weight of the reactants and products, and classify each reaction type. Students fill in a table of solubility...
Curated OER
Empirical and Molecular Formula
For this formulas worksheet, students review how to write compounds in their empirical formula and molecular formula. Then students complete 4 problems.
Curated OER
Gases
In this gases worksheet, students review the kinetic molecular theory and use the ideal gas law to solve 20 problems.
Curated OER
Chemistry 1A Review
For this Chemistry 1A worksheet, students review, molecular weight, solubility, endothermic reactions, and number of protons, neutrons, and electrons for elements. Students review Lewis Structures and how to predict the amount of product...
Curated OER
Gas Laws
In this gas worksheet, students calculate molar mass and molecular weight of a given mass of gas at a specific temperature and pressure. Students calculate partial pressure of given gases. This worksheet has 6 word problems.
Curated OER
Solutions
In this chemical solutions worksheet, students determine the molecular weight of a substance, determine the boiling and freezing point of solutions, and determine molarity of a solution. This worksheet has 3 problems to solve.
Curated OER
Grahams Law
In this Grahams Law worksheet, students determine which gas will escape faster when equal amounts of helium and argon are placed in a porous container and allowed to escape. Then they determine what the molecular weight of a gas is that...
Simon Fraser University
Chem1 Virtual Textbook: Moles and Mixtures
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section covers a variety of topics related to moles, including molecular weight and density...
Vision Learning
Visionlearning: Atomic Theory and Structure: The Mole: Its History and Use
An introduction to the mole, a unit of measurement that quantifies atoms and molecules.
City University of New York
Brooklyn College: Osmosis Interactive Activity
Great activity with clear background information. Try out the lab using osmosis to calculate molecular weight.
Texas Instruments
Texas Instruments: Diprotic Acid Lab and Easy Data
Maleic Acid gives an excellent diprotic acid titration curve showing both inflection points clearly for calculation of molecular weight.
Simon Fraser University
Chem1 Virtual Textbook: Molecular Weight and Density of a Gas
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section deals with gases and specifically molecular weight and gas density.
Michael Blaber, PhD
Florida State Univ.: Stoichiometry: Chemical Formulas and Equations
Determining empirical formula from analytical data, and determing molecular formula from empirical formula, with flow charts and sample calculations.
Towson University
Towson University: Determining Formulae
Explanation of how to calculate empirical and molecular formulas.
Other
Chris Johnson: Amedeo Avogadro
This site deals with Amedeo Avogadro, his life, his contributions to chemistry, and his famous number.
Clackamas Community College
Clackamas Community College: Molecular Formulas
Discussion of molecular formula and how to determine it from empirical formula. Practice problems are available.
Frostburg State University
General Chemistry Online: Faq the Mole Concept
This FAQ site over general chemistry concepts presents the question: "Why are moles used?" It explains what moles are and how they can be used to count molecules and how grams can be turned into moles.