Worksheet
Curated OER

Stoichiometry Problems

For Students 10th - Higher Ed
In this stoichiometry worksheet, students practice calculating mass or volume for specific chemical reactions. This worksheet has 5 problems to solve.
Worksheet
Curated OER

Chemical Stoichiometry Problems

For Students 10th - Higher Ed
In this stoichiometry worksheet, students calculate theoretical yield and percent yield. This worksheet has 2 problems to solve.
Lesson Plan
Chymist

Plop, Plop, Fizz, Fizz

For Teachers 9th - 12th Standards
One of the most recognizable commercial melodies was written in 1977, and led to gastronomical relief around the world. Scholars use Alka Seltzer tablets to measure reactants and calculate the chemical equation for the reaction of NaHCO3...
Lesson Plan
Curated OER

Stoichiometry

For Teachers 11th - Higher Ed
For this stoichiometry worksheet, students practice calculating moles, molarity, and the concentration of a solution in molarity. This worksheet has 12 multiple choice questions and 3 problems to solve.
Worksheet
Curated OER

Molarity Worksheet

For Students 10th - Higher Ed
In this molarity worksheet, students fill in unknowns such as mass of solute, moles of solute, volume of solution and molarity of solution in a chart with given solvents. They also calculate the molarity of solutions in other problems.
Worksheet
Curated OER

Acid and Base Problems

For Students Higher Ed
In this acid and base instructional activity, students use seven steps to calculate concentrations of ions in acidic and basic solutions. They also determine the type of acid or base.
Worksheet
Curated OER

AP Chemistry-Gas Law Practice

For Students 10th - 12th
In this gas worksheet, students find pressures, partial pressures, volumes, temperatures and number of moles of gases using the various gas laws.
Lesson Plan
Curated OER

Mini Rockets

For Teachers 10th - 12th
Learners explore gases. In this chemical energy instructional activity, students will observer chemical reactions and infer a conclusion about reaction producing gasses.
Lesson Plan
Curated OER

Back Titrations

For Teachers 11th - 12th
In this chemistry worksheet, learners calculate the titrations of various types of chemistry problems. The questions include background information.
Worksheet
Curated OER

Estimating Errors in Chemistry

For Students 9th - 12th
Estimating Errors in Chemistry is a detailed handout that illustrates the importance of calculating the percent error when working in the chemistry lab. There are no actual problems to solve, just notes and examples of calculations. Hand...
Worksheet
Curated OER

Chemical Equations

For Students Higher Ed
In this chemical equations worksheet, students determine the empirical formulas for chemical compounds and balance chemical equations. This worksheet has 1 fill in the blank question and 4 problems to solve.
Lesson Plan
Curated OER

Determination of Equivalent Weight of an Acid

For Teachers 10th - Higher Ed
In this chemistry worksheet, students look for the weight of acid and examine its mass using chemical equations and a laboratory procedure.
Lab Resource
Creative Chemistry

Thermometric Titration

For Students 10th - 12th
For this thermometric titration learning exercise, students titrate hydrochloric acid with sodium hydroxide to determine its concentration. They measured the solution's change in temperature, plotted their data, and used the graph to...
Worksheet
Curated OER

Calorimetry Exercises

For Students 10th - Higher Ed
In this calorimetry worksheet, students determine the specific heat and the heat of neutralization in the 2 problems they solve.
Unknown Type
Chemistry Collective

Chem Collective: Textbook Style Limiting Reagents Problems

For Students 9th - 10th
Textbook-style practice limiting reagent exercises with that can be used as a way to "predict and check" your answers using the virtual lab.
Activity
Chemistry Collective

Chem Collective: Textbook Style Limiting Reagents Problem Ii

For Students 9th - 10th
In this activity, students practice with experiments involving limiting reagents and the test their knowledge to determine the concentration of an unknown solution.
Article
Khan Academy

Khan Academy: Limiting Reagents and Percent Yield

For Students 9th - 10th
How to determine the limiting reagent, and using stoichiometry to calculate the theoretical and percent yield.
Handout
University of Waterloo (Canada)

University of Waterloo: Excess and Limiting Reagents

For Students 9th - 10th
Very good site which gives an explanation, example and skill building questions over limiting reagents.
Website
Frostburg State University

Frostburg State University: Limiting Reagents

For Students 9th - 10th
Middle of a slide show on stoichiometry that shows a nice graphical look and example of limiting reagents.
Website
Frostburg State University

General Chemistry Online: Limiting Reactant Problem

For Students 9th - 10th
Explains the essence of limiting reactant problems using a sample problem: How can an amount of product (KNO3) be predicted from amounts for two reactants (KCl and HNO3)? Shows the work and explains how to solve these types of problems.
Activity
Chemistry Collective

Chem Collective: Predicting Dna Concentration

For Students 9th - 10th
In this limiting reagents problem, students are given specific concentrations of DNA solutions and are asked to predict what products and reactants will remain after a specific volumes are mixed and reaction has occurred.
Activity
Chemistry Collective

Chem Collective: Determining Reactants and Products in a Solution of Dna

For Students 9th - 10th
In this limiting reagents problem, students are given specific concentrations of DNA solutions and are asked to predict what products and reactants will remain after a specific volumes are mixed and reaction has occurred.
Activity
Chemistry Collective

Chem Collective: Determine the Concentration of Unknown Silver Nitrate Solution

For Students 9th - 10th
In this limiting reagents problem, students are asked to determine the amount of silver nitrate dissolved in a solution by performing a reaction with solid NaCl. In this randomized activity, each student is given a different unknown...
Activity
Chemistry Collective

Chem Collective: Chemical Remediation of Arsenic

For Students 9th - 10th
In this problem, students determine the limiting reagent in a reaction involving the remediation of arsenic from drinking water.

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