Curated OER
Understanding Chemical Equations
In this chemical equations instructional activity, students identify the reactants and the products, state what phase each is in, and state the mole ratios of all the products and reactants. Students complete 10 problems.
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Chemical Stoichiometry Problems
In this stoichiometry worksheet, students calculate theoretical yield and percent yield. This worksheet has 2 problems to solve.
Curated OER
Everything You Ever Wanted to Know About Stoichiometry
In this chemistry worksheet, students identify the process of Stoichiometry and use it to calculate various chemical reactions similar to that of a recipe. In addition, they identify a connection between isoamyl alcohol and the product...
Curated OER
Formulas from Masses
In this mass worksheet, learners determine the percentage composition of given compounds. Students write the empirical formula from the percentage composition. This worksheet has 5 problems to solve.
Curated OER
Combustion Analysis Worksheet
For this combustion worksheet, students are given directions as to how to analyze a combustion reaction and they then solve five problems using this process.
Curated OER
Stoichiometry
In this stoichiometry worksheet, students review definitions and equations associated with molarity, density, atomic mass, molarity, and dilutions. This worksheet has 18 word problems.
Curated OER
Fatty Acids For Soap Making
Students titrate a sample of fatty acids with standardized sodium hydroxide solution. From the amount of base needed for neutralization and the mass of sample used for titration, the apparent average molar mass of the sample is...
Curated OER
You say Avocado, I say Avogadro
Students convert mole to mass to particles and vice versa. In this chemistry instructional activity, students discuss the importance of Avogadro's number. They apply what they have learned in a team competition.
Curated OER
Stoichiometry
In this stoichiometry learning exercise, students determine the molar ratio for chemical equations. Students calculate moles and grams for reactions. This learning exercise has 10 problems to solve.
Curated OER
Stoichiometry
For this stoichiometry worksheet, learners review concepts related to stoichiometry including molar ratio and conservation of matter. Students calculate the number of mole is specific reactions. This worksheet has 7 fill in the blank, 5...
Curated OER
Chemical Calculations
In this chemical calculations worksheet, students fill in 7 blanks with appropriate terms. They determine if 7 statements are true or false, they match 5 conversion problems to their solutions and they solve 2 stoichiometry problems...
Science Geek
Stoichiometry
Watch your class react when you tell them they're going to study stoichiometry! The lesson demonstrates four examples. Scholars must write and balance the chemical equation and then make the conversion to find the correct mass or volume....
Curated OER
Molar Ratio
Students conduct an experiment in which they react sodium bicarbonate with hydrochloric acid to determine the molar ration between the two reactants. Students must write correct formula and a balanced chemical equation and explain how...
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Empirical and Molecular Formula
In this formulas learning exercise, students review how to write compounds in their empirical formula and molecular formula. Then students complete 4 problems.
Curated OER
Stiochiometry: Quantifying Changes in the Environment
Students examine stoichiometry. In this chemical reaction and mole lesson, students complete an experiment based on readiness levels to explore that changes are quantified in chemical reactions.
National Institute of Open Schooling
Chemical Arithmetics
Substances with the same empirical and molecular formula must be differentiated by their structural formula. Part two in a series of 36 has pupils using chemical formulas to calculate how much of a compound is present in a given...
Virginia Department of Education
Molar Volume of a Gas
What is a chemist's favorite plant? Stoichiome Tree! Scholars produce hydrogen gas by reacting magnesium with hydrochloric acid. Then they calculate the molar volume of the gas produced before answering assessment questions.
Curated OER
WS 9.2 Equilibrium
In this equilibrium worksheet, students fill in twenty one blanks with terms related to reactions and equilibrium. They then solve four problems given chemical reactions and determine equilibrium, moles present at equilibrium and...
Science Geek
Percent Composition, Empirical and Molecular Formulas
Help your pupils understand when empirical becomes molecular. The lesson presentation demonstrates the connection between empirical formulas and molecular formulas. Then, given percent composition, the lesson demonstrates the steps to...
Curated OER
Buffers
For this chemistry worksheet, learners calculate the pH, moles and pH of buffering solutions to complete 6 problems. They determine the volume of solution needed to prepare a certain buffer.
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Iron Filings
Young scholars conduct an experiment in which a solution of copper(II) sulfate is added to iron filings. They write and balance the equation for the reaction that occurs and calculate the amount of iron that reacted and the percent yield...
Chymist
Empirical Formula of a Compound
Because of the work of John Dalton, we are able to write formulas for compounds. The hands-on experiment has scholars prepare a compound from its elements. Using mass data, individuals write the empirical formula for the compound.
Curated OER
BioFuels: The Chemistry and Economics of Alternative Fuels
Junior chemists manufacture biodiesel in the lab. In this exercise, they check the purity of the biodiesel using thin layer chromatography. They also calculate its density and heat of combustion. They are sure to rise to the challenge...
Curated OER
Gas Stoichiometry
In this gas stoichiometry worksheet, learners use the ideal gas law and balanced chemical equations to solve for unknown values such as volume and mass of gases.