Curated OER
Unit Conversion in Chemistry
Hopefully by the time high schoolers are enrolled in your chemistry class, they are skilled with unit conversion. It does not hurt, however, to take an hour early in the school year to review this vital skill. This plan simply provides a...
Virginia Department of Education
Aspirin Analysis
Laughter may be the best medicine, but aspirin is also important. Young chemists analyze aspirin tablets using titration in this lab experiment. They then repeat the entire experiment using a different aspirin brand.
Curated OER
Final Worksheet
In this chemistry worksheet, students complete 15 short answer questions and problems on empirical and molecular formula, naming and writing chemical formula of compounds.
Curated OER
Combustion Analysis Worksheet
In this combustion activity, students are given directions as to how to analyze a combustion reaction and they then solve five problems using this process.
Curated OER
Chemical Stoichiometry Problems
In this stoichiometry learning exercise, students calculate theoretical yield and percent yield. This learning exercise has 2 problems to solve.
Curated OER
Stoichiometry
Students research chemical formulas and balance chemical equations. In this chemical equations lesson students complete a class activity on chemical equations and answer questions.
Sophia Learning
Sophia: Molar Mass of an Element
Through this short tutorial, learn how to use the periodic table of elements to determine the molar mass of elements.
Sophia Learning
Sophia: Molar Mass of a Compound: Lesson 2
This lesson will define molar mass and give examples of how to determine the molar mass of different compounds using the periodic table. It is 2 of 2 in the series titled "Molar Mass of a Compound."
Sophia Learning
Sophia: Converting From Mass to Particles Using a Balanced Chemical Equation
A narrated screencast explaining how to use a balanced chemical equation to determine the number of particles of a substance given the starting mass of another substance. [4:46]
CK-12 Foundation
Ck 12: Percent Composition and Empirical & Molecular Formulas
[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will learn to calculate the percent composition of a compound either from mass data or from the chemical formula. They will use...
CK-12 Foundation
Ck 12: Gas Mixtures and Molecular Speeds
[Free Registration/Login may be required to access all resource tools.] The following online tutorial helps students use Dalton's Law and mole fraction to calculate the partial pressure of a gas in a mixture. They will learn to calculate...
Towson University
Towson University: Determining Formulae
Explanation of how to calculate empirical and molecular formulas.
Texas Instruments
Texas Instruments: Mole Activity
This activity is intended to help students gain an understanding of the mole concept. By determining the molar mass of the element at each station, students will be able to identify the element. Students will learn that the molar mass of...
Sophia Learning
Sophia: Chemical Reactions: Stoichiometry
This lesson on stoichiometry demonstrates how to use a balanced chemical equation to determine the mass of a product given the starting mass of a reactant. [7:55]
Texas Instruments
Texas Instruments: Molar Gas Lab
Students use stoichiometry to determine the mass of oxygen gas in a bottle. They may also check their answer against the amount of potassium chloride produced during the reaction.
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.
Texas Instruments
Texas Instruments: Conductimetric Titration & Gravimetric Determination
Students use a Conductivity Probe to measure change in conductivity during a chemical reaction and determine the equivalence point of the reaction They determine the mass of the product and calculate the molar concentration of the...
Chemistry Collective
Chem Collective: Cola and Sucrose Concentration Problem
In this activity, students use the virtual lab to prepare a sucrose solution for a soda recipe. They next calculate the concentration of their solution in terms of molarity, percent mass and density. Finally, they compare the density of...