Curated OER
Stoichiometry Problems
A cookie recipe is displayed as an example of proportional relationships, a clever way to introduce your chemists to stoichiometry! The steps of stoichiometry are listed, molar volume is explained, and then several stoichiometry problems...
Science Geek
Thermochemical Calculations
Viewers learn where the heat goes when phase changes take place with a presentation that explains the latent heat of phase changes, or, more specifically, the molar heat of fusion, solidification, vaporization, and condensation. The show...
Curated OER
Limiting Reagents and Percent Yield Problems
Twelve questions about the various calculations of mass and yield are given here. There is significant practice of molarity calculations and consideration of the reactant and product balance.
Curated OER
Concentrations of Solutions
Students solve problems involving the molarity of a solution. In this solutions lesson students calculate the molarity and mole fraction of a solution and solve problems involving mass and volume.
Curated OER
Worksheet 1
In this worksheet, learners calculate the density, molar mass, and volume of given word problems. Students also calculate the partial pressure of the gases given in the particular problem.
Curated OER
Mass, Mole, Volume Conversions
In this conversion worksheet, students make the following conversions, showing each step. Students use the periodic table and express all molar masses to 1 decimal place.
Curated OER
Introduction to Gas Chromatography
Students analyze gas chromatograms and suggest various applications for gas chromatography.
Curated OER
Ideal Gas Problems
In this ideal gas worksheet, students review Boyle's law, Charles's law, and Avogadro's principle. Students use this information to complete 3 problems.
Curated OER
Chemistry Review
In this chemistry overview worksheet, students review stoichiometry, states of matter, thermochemistry, gas laws, chemical bonding, molarity, chemical equilibria, and kinetics. This worksheet has 41 problems to solve.
Virginia Department of Education
Charles’ Law
Searching for a relatively interesting way to demonstrate Charles' Law? Here is a lesson in which pupils heat air inside a flask and then cool the flask to quickly cool the air. They make observations about what occurs during the cooling...
Curated OER
Moles
For this moles worksheet, students review solubility, moles of solute, molar mass, and colligative properties. This worksheet has 10multiple choice questions and 11 problems to solve.
Curated OER
IB Chemistry Practice Test
In this chemistry review worksheet, students practice using Avogadro's number, calculating number of moles, and using the gas laws. This worksheet has 39 multiple choice questions.
Curated OER
Stoichiometry Practice Problems
In this stoichiometry worksheet, learners calculate the mass of compounds or gases produced from given chemical reactions. This worksheet has 5 problems to solve.
Chymist
Determination of the Volume of CO2 in Pop Rocks
Where does the pop in pop rocks come from? An engaging activity asks scholars to measure the amount of carbon dioxide in a package of Pop Rocks candy. Learners dissolve the candy in water and use the solubility of CO2 to determine its mass.
Science Geek
Stoichiometry
Watch your class react when you tell them they're going to study stoichiometry! The lesson demonstrates four examples. Scholars must write and balance the chemical equation and then make the conversion to find the correct mass or volume....
Cornell University
Predicting Chemical Reactions
Prove the Law of Conservation of Mass through a lab investigation. A well-designed lesson plan asks groups to combine materials and monitor indicators for chemical reactions. Measuring the mass of the reactants and products allows...
Curated OER
Moles, Molecules and Molecular Mass
In this moles, molecules and molecular mass worksheet, high schoolers solve 18 problems where they find the number of moles in a gas, they calculate the number of molecules in a sample of gas or they find the volume of gas in a sample...
Curated OER
Extracting Oxygen from Moon Rocks
In this extracting oxygen from moon rocks worksheet, students read about the need for oxygen for lunar colonists. Students solve 2 problems about the lunar mineral ilmenite which contains oxygen and other elements. They find the molar...
Curated OER
Worksheet 2-2 Stoichiometric Tools
In this stoichiometry worksheet, young scholars solve a variety of problems including finding empirical and molecular formulas, determining molarities of solutions, determining molecular weights of compounds and calculating the percent...
Curated OER
CHM 152 Thermodynamics (Ch. 16)
In this thermodynamics worksheet, students answer multiple choice questions about enthalpy and entropy, they calculate molar entropies and they determine equilibrium constants and free energy of reactions.
Curated OER
Sea of Air #3
In this air worksheet, high schoolers determine the major gases found in the earth's atmosphere and review STP and Avogadro's Law. This worksheet has 1 true or false, 2 fill in the blank, and 7 short answer questions.
Curated OER
Avogadro's Law
Young scholars study Avogadro's law and what it means in science. In this gaseous lesson students complete an Avogadro's law experiment.
Science Geek
Kinetic Molecular Theory
The fourth presentation in a series of five begins with information about the nature of gases and what to expect from them. Then it discusses kinetic molecular theory, diffusion, and Graham's Law, and concludes with the purification of...
Virginia Department of Education
Vapor Pressure and Colligative Properties
Hate to vacuum, but enjoy using a vacuum pump? Explore a instructional activity that starts with a demonstration of boiling water at various temperatures by using a vacuum pump. Then scholars design their own experiments to measure vapor...