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Worksheet
Curated OER

What Can We Measure about Chemicals?

For Students 10th - 12th
In this measuring chemicals worksheet, students determine the accuracy and precision of measurements and distinguish between the two. They find the percent composition of compounds, the molar mass of compounds and the volume of gases at...
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Worksheet
Curated OER

Chemical Calculations and Chemical Formulas

For Students 11th - 12th
In this stoichiometry worksheet, students calculate molar masses, empirical and molecular formulas to solve 105 problems and short answer questions.
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Worksheet
Curated OER

Solutions Review

For Students 10th - 12th
In this solutions worksheet, students review the properties of solutions, the polarity of molecules, molarity, and solubility curves. This worksheet has 8 short answer questions and 15 problems to solve.
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Worksheet
Curated OER

Article - "Designer Catalysts"

For Students 10th - 12th
In this catalyst activity, students define catalyst and enzyme and explain how these work in a chemical reaction. Students calculate molar mass of a compound. This activity has 7 short answer questions and 2 problems to solve.
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PPT
Science Geek

The Mole

For Students 10th - Higher Ed
What can you call a tooth in a glass of water? A one-molar solution! Presentation covers moles, Avogadro's Number, calculating formula mass, converting moles to grams, converting grams to moles, and calculations with moles. It is the...
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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 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...
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Lesson Plan
Virginia Department of Education

Solution Concentrations

For Teachers 9th - 12th Standards
What happens when you combine 6.022 times 10 to the 23 piles of dirt into one? You make a mountain out of a mole hill. Scholars use dehydration to obtain percent composition and then calculate the molarity of the original solution. 
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Handout
National Institute of Open Schooling

Mole Concept

For Students 7th - 12th Standards
Learners explore atomic measurement in the first activity in a series of 36. Through readings, activities, and questions, classes review standard SI units, learn about Avogadro's constant, and use it to help them calculate moles. They...
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Lesson Plan
Santa Monica College

Titration of Vinegar

For Teachers 9th - Higher Ed Standards
Titration calculations require concentration. The 10th lesson plan in an 11-part series challenges young chemists to use titration in order to determine the molarity and mass percent in concentrated vinegar. Analysis questions encourage...
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PPT
Science Geek

Calculations of Solution Concentration

For Students 9th - 12th
Teach the process of calculating concentrations of a solute. The fourth in a series of seven chemistry lessons shows the various types of calculations including grams per liter, molarity, parts per million, and percent composition. The...
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Worksheet
Curated OER

Molarity

For Students 9th - 12th
For this molarity worksheet, students are given the equation to find moles per liter of solution. They solve ten problems finding molarity of solutions, moles needed to make particular molar solutions and mass needed to make particular...
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Worksheet
Curated OER

The Ideal Gas law, Molar Mass and Density

For Students 9th - 12th
In this ideal gas law, molar mass and density worksheet, high schoolers read about how the molar mass and density of a gas can be determined from the ideal gas law. They solve five problems using the ideal gas law to find the pressure,...
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Worksheet
Curated OER

Molecules, Moles and Molar Masses

For Students 9th - 12th
In this molecules, moles and molar masses instructional activity, students find the atomic masses of 8 elements, they write the formulas for 6 diagrams of molecules and they find the molecular masses of 12 compounds. Students also find...
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Worksheet
Curated OER

Classifying Chemicals

For Students 9th - 12th
For this acids and bases worksheet, students identify the strengths of acids and  bases and indicate the concentration of hydronium and hydroxide ions. They determine if given chemical formulas are acids or bases, they find the molarity...
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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...
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Assessment
Curated OER

2000 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
The National Chemistry Olympiad exams are comprehensive tests covering an entire  year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
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Assessment
Curated OER

2002 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
As to be expected from the American Chemical Society Olympiad Examinations Task Force, this 60-question test tops the charts in terms of excellence. It consists entirely of multiple choice questions designed to assess a year's worth of...
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Worksheet
Curated OER

Molarity and Stoichiometry

For Students 10th - Higher Ed
In this molarity worksheet, learners apply the definition of molarity to the given balanced equations. This worksheet has 4 problems to solve.
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Lesson Plan
Curated OER

Relating Moles to Coefficients of a Chemical Equation

For Teachers 9th - 12th
Young scholars investigate the coefficients in a chemical equation and their relation to moles. In this moles and coefficients lesson plan, students perform a single replacement reaction of copper (II) sulfate and zinc and find the ratio...
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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...
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Lesson Plan
Curated OER

Regents High School Examination PHYSICAL SETTING CHEMISTRY 2007

For Teachers 9th - 12th
The University of the State of New York has designed a series of exams to be given to high schoolers. This chemistry exam is one of the most comprehensive and well-written that you will ever find. It consists of 84 questions in a variety...
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Lesson Plan
Curated OER

Regents High School Examination PHYSICAL SETTING CHEMISTRY 2006

For Teachers 9th - 12th
The 2006 version of the Regents High School Exam is just as thorough as the rest of them! Assess chemistry learners on an entire year's curriculum when they take this thirteen page test. 
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Worksheet
Curated OER

Precipitation, Acids and Bases, and Molarity

For Students 10th - 11th
In this chemistry worksheet, students write the net ionic equations for any precipitation reactions that occur on mixing aqueous solutions for each of the substances listed. Then they write the net ionic equations for the acid/base...
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Worksheet
Curated OER

Mass-Moles-Particles

For Students 10th - Higher Ed
In this moles worksheet, students define a mole and convert grams to moles or moles to molecules. Students convert specific mass of compounds to moles. This worksheet has 1 true or false, 6 short answer, 3 fill in the blank, and 15...

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