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.
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.
Other
Chris Johnson: Amedeo Avogadro
This site deals with Amedeo Avogadro, his life, his contributions to chemistry, and his famous number.
Other
States of Matter and Properties of Gases: Terms
A very complete list of terms that are important to the study of gases. This resource is a web archive.
Upper Canada District School Board
Tom Stretton's Advanced Placement Chemistry: Stoichiometry
This online textbook chapter provides learners with advanced-level reading and practice material on stoichiometry