Assessment
Curated OER

2001 U.S. National Chemistry Olympiad - Local Section Exam

For Students 9th - 12th
Sixty multiple-choice chemistry questions make up this comprehensive exam used for the 2001 US National Chemistry Olympiad. Every topic that you would expect to approach in a general chemistry class is queried on. You could easily use...
Assessment
Curated OER

2007 U.S. National Chemistry Olympiad Local Section Exam

For Students 9th - 12th
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...
Activity
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Teach Engineering

Flame Test: Red, Green, Blue, Violet?

For Teachers 10th - 12th Standards
Let the true colors shine through. Pupils conduct a flame test to identify an unknown element. Class members calculate and prepare specific molarity solutions of three chemicals. Using their observations of the colors emitted, they...
Worksheet
Curated OER

Gas Laws

For Students Higher Ed
For this gas worksheet, students calculate molar mass and molecular weight of a given mass of gas at a specific temperature and pressure. Students calculate partial pressure of given gases. This worksheet has 6 word problems.
Worksheet
Curated OER

Moles, Molecules, and Molar Masses

For Students 10th - 12th
In this molecules worksheet, students calculate the mass or volume of a certain number of moles of a compound. There are 3 difficulty levels of this worksheet, each one has 6 problems to solve.
Lesson Plan
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Everything You Ever Wanted To Know About Hot Wire Chemical Vapor Deposition, But Were Afraid To Ask

For Teachers 10th - 12th
To wrap up your year of general chemistry, have lab groups compete in a tot wire chemical vapor deposition (HWCVD) competition. With their foundation in chemical nomenclature, stoichiometry, and gas laws, each group completes several...
Organizer
Curated OER

Thermochemistry

For Students 8th - 10th
In this thermochemistry instructional activity, learners indicate whether the given processes are endothermic or exothermic reactions. Students complete the phase change diagram as well as define a given set of vocabulary words. Learners...
Lesson Plan
Curated OER

Chemistry Lab-Molar Volume of Gas

For Teachers 9th - Higher Ed
Students determine the molar volume of hydrogen gas. In this molar volume lesson plan, students find the molar volume of hydrogen produced in a reaction between magnesium and hydrochloric acid. They use a eudiometer to measure the volume...
Worksheet
Curated OER

Molarity Worksheet

For Students 10th - Higher Ed
For 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.
Lesson Plan
Curated OER

Ammonium Nitrate - Efficient Fertilizers

For Teachers 11th - Higher Ed
Learners study the chemistry of ammonium nitrate and consider the advantages and disadvantages of this compound. They compare different fertilizers and calculate the molar mass and percent nitrogen in the different fertilizers.
Worksheet
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Holy Moley!

For Students 11th - Higher Ed
In this chemistry worksheet, students calculate to find the molar mass of water. Then they identify how many moles of hydrogen atoms and oxygen atoms they would have in a beaker. Students also write the chemical formula of cholesterol.
Worksheet
Curated OER

Stoichiometry Practice Problems

For Students 10th - Higher Ed
In this stoichiometry worksheet, students calculate the mass of the compound produced from given chemical reactions. This worksheet has 6 problems to solve.
Worksheet
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Stoichiometry Practice Problems

For Students 10th - Higher Ed
In this stoichiometry worksheet, students calculate the mass of compounds or gases produced from given chemical reactions. This worksheet has 5 problems to solve.
Lesson Plan
Curated OER

Mole Conversions

For Teachers 10th - Higher Ed
In this compounds worksheet, students determine the number of molecules in molar mass for given amounts of different compounds. This worksheet has 5 problems to solve.
Worksheet
Curated OER

Moles, Stoichiometry, and Concentration

For Students 10th - Higher Ed
In this stoichiometry worksheet, students practice calculating moles, molar mass, and percentage composition of given compounds. This worksheet has 55 problems to solve.
Worksheet
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Moles

For Students 10th - Higher Ed
In this moles worksheet, students calculate the molar mass of compounds. Students also determine how many moles of a compound are in a certain mass of that compound. This worksheet has 8 problems to solve.
Lesson Plan
Curated OER

Solution Chemistry Investigation

For Teachers 9th - 12th
Young scholars engage in a lesson that is concerned with the concepts related to solution chemistry. They calculate the molar mass of various chemical compounds. Then students predict the anion ratio for ionic compounds. Young scholars...
Worksheet
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Chemical Reactions

For Students 10th - Higher Ed
In this chemical reactions worksheet, students calculate the molar mass and the rate of reaction for the given chemical reactions. This worksheet has 3 problems to solve.
Worksheet
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Moles, Molecules and Molecular Mass

For Students 9th - 12th
For this moles, molecules and molecular mass worksheet, students solve 18 problems where they find the number of moles in a gas, they calculate the number of molecules in a sample of gas or they find the volume of gas in a...
Worksheet
Curated OER

Percent Mass, Moles, and Avogadro Worksheet

For Students 9th - 12th
In this moles worksheet students complete a set of calculations to find how many atoms and moles are in different substances. 
Lesson Plan
Curated OER

Molar Mass

For Teachers 9th - 12th
High schoolers apply the ideal gas law and Dalton's Law of Partial Pressure to develop an experiment which determine the molar mass of butane from disposable lighters. In small groups, they develop a procedure and have it approved...
Interactive
Royal Society of Chemistry

Concentration of Solutions 1

For Students 6th - 12th
Need a fun solution to teaching ... solutions? A series of puzzles provides reinforcement to key molarity terms and calculations. Science scholars determine the concentration of several solutions before using the information to solve...
Worksheet
Curated OER

Limiting Reagents and Percent Yield Problems

For Students 10th
Twelve questions about the various calculations of mass and yield are given here.  There is significant practice of molarity calculations and consideration of the reactant and product balance.
Lesson Plan
Virginia Department of Education

Finding the Formula and Percent Composition

For Teachers 9th - 12th Standards
Do you have mole problems? If so, call Avogadro at 602-2140. The lesson plan starts with pupils working independently to solve for molar mass of ionic compounds. Then they learn to solve for percent composition and later perform an...