Curated OER
Percentage Composition
In this chemistry worksheet, young scholars find the formula weight for each of the substances listed on the sheet. Then they find the percentage composition as indicated.
Chemistry Collective
Chem Collective: Mixed Reception
Participate in the investigation of a virtual crime scene using chemistry concepts to solve a mysterious death. The 40-50 minute activity can be used as a classroom lab or as a homework assignment. Additionally, teachers may request a...
Clackamas Community College
Clackamas Community College: Molecular Formulas
Discussion of molecular formula and how to determine it from empirical formula. Practice problems are available.