Curated OER
Stoichiometry
In this stoichiometry activity, students review mole conversions, percent composition, empirical formulas and molecular formulas. This activity has 6 problems to solve.
Curated OER
Math for AS Chemistry
No practice problems are given on this handout; it is a detailed list of concepts to know and tips for working related problems in chemistry. Give this to learners as a study guide, or use it early in your career as a chemistry...
Curated OER
Hydrated Salt
Students plan, design, and carry out an experiment to determine an empirical formula for a hydrated salt X that tell students when all the water has been removed from hydrate crystals.
Curated OER
Grossmont College - Chem 115 Practice Exam 2
Here is a straightforward practice test for first year chemistry learners. Responders balance equations, identify types of reactions, represent electron configurations, and solve stoichiometry problems. Keep this handy to use as...
Curated OER
Chemical Analysis and Stoichiometry
In this chemical analysis worksheet, students use a combustion analysis report to calculate the empirical formula for compound samples. This worksheet has 2 problems to solve.
Curated OER
Final Worksheet
In this chemistry learning exercise, students complete 15 short answer questions and problems on empirical and molecular formula, naming and writing chemical formula of compounds.
Inside Mathematics
Marble Game
Pupils determine the theoretical probability of winning a game of marbles. Individuals compare the theoretical probability to experimental probability for the same game. They continue on to compare two different probability games.
Curated OER
Areas and Volumes
Tenth graders calculate the area and the volumes of polygons. In this geometry lesson, 10th graders review the formulas used to solve for the area and volume and explain to the class how they arrived at their answer. They search online...
Curated OER
Stoichiometry
In this stoichiometry worksheet, students identify types of reactions, show the products, and balance the equations. Students determine the limiting reagent, theoretical yield, and percent yield for given reactions. This worksheet has 5...
Clackamas Community College
Clackamas Community College: Empirical Formulas
This site presents as explanation for calculating empirical formulas from composition data. Numerous examples are given, along with practice problems.
Texas A&M University
Texas A&m: Steps for Determining an Empirical Formula
The steps for determining an empirical formula are listed on this site. Also, it tells how to determine the molecular formula from an empirical formula. Two example problems are worked through step by step.
Clackamas Community College
Clackamas Community College: Molecular Formulas
Discussion of molecular formula and how to determine it from empirical formula. Practice problems are available.
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.
Chem Tutor
Chem Tutor: Basic Stiochiometry
Detailed discussion of stoichiometry, mols, and percents. Includes examples showing dimensional analysis (factor-lable method) and a link to the mole road map (a diagram which leads one through the stoichiometric problem-solving process).