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
Earth and Matter
In this matter learning exercise, students review the Earth's layers, write balanced equations, and compare the properties of different elements. This learning exercise has 29 fill in the blank questions.
Curated OER
Clouds
Young scholars explore clouds. In this clouds lesson plan, students talk about, write about, and paint clouds to gain an understanding of clouds.
Curated OER
What Goes in Must Come Out
Young scholars monitor their calorie intake and energy expenditure. They keep track of daily data in a journal and assess and adjust their diets as appropriate.
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...
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.
CK-12 Foundation
Ck 12: Chemical Formulas
[Free Registration/Login may be required to access all resource tools.] Students will use a chemical formula or mass data to calculate the percent composition of a compound, and then calculate the empirical or molecular formula for a...
Frostburg State University
General Chemistry: Percent Compound in a Mixture
Resource contains and example problem and solution of how to compute percent compound within a mixture when given the mixture's mass and element percents.
CK-12 Foundation
Ck 12: Chemistry Simulation: Average Atomic Mass
[Free Registration/Login Required] Students explore how percent abundances of different isotopes affect the average atomic mass for that given element. Students form connections between the average atomic mass and a person's body mass....
Towson University
Towson University: Determining Formulae
Explanation of how to calculate empirical and molecular formulas.
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