Texas Education Agency
Texas Gateway: Empirical Formula
This tutorial reviews how to calculate molecular formula by giving students video, exercises, and practice.
CK-12 Foundation
Ck 12: Chemistry: Empirical Formula
[Free Registration/Login may be required to access all resource tools.] Covers empirical formula.
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...
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Determination of Empirical and Molecular Formulas:
Listen as this audio book shows the determination of empirical and molecular formulas. View the formula to calculate empirical and molecular formulas and the written steps for calculating.
Carnegie Mellon University
Chem Collective: Mineral Composition
In this randomized calculation activity, students calculate the empirical formula of a compound given its elemental analysis. Step-by-step support and feedback is provided for students who need additional help.
Carnegie Mellon University
Chem Collective: Stoichiometry Bridge Course
This is a complete course in chemical stoichiometry, set in a scenario that shows how stoichiometry calculations are used in real-world situations. This course has been designed to not only help you strengthen your skills with...
Other
Seton Hall University: Using Mass Percent
Slides in presentation show how to use mass percent to calculate empirical and molecular formulas.
Other
University of South Carolina: Molecular Formula
A brief explanation of the relationship between molecular formula and empirical formula.
Carnegie Mellon University
Chem Collective: Composition Determination of a Mixture
In this activity, students calculate the percent composition of a mixture of two arsenic-containing minerals. Step-by-step support and feedback is provided for students who need additional help.
Frostburg State University
General Chemistry Online: The Mole Concept
Resource provides notes on Moles and Stoichiometry. Deals with all book-keeping aspects, including as section on yields and limiting reactants. Includes lesson plans, lecture slides and notes, links to related websites, and frequently...