Worksheet
Curated OER

Percentage Composition and Empirical & Molecular Formula

For Students 10th - 12th
For this compounds worksheet, students determine the empirical and molecular formulas for given compounds. This worksheet has 10 problems to solve.
PPT
Curated OER

Empirical Formula

For Teachers 9th - 12th
Plenty of time was invested in creating this detailed presentation. The first slide alone includes several steps that support your explanation of percent composition, a precursor to understanding how to write empirical and molecular...
Worksheet
Curated OER

Formula Mass

For Students 9th - 12th
In this formula mass worksheet, students read about molecular substances and their formula masses. They find the formula masses for six compounds using the atomic masses of its elements.
Worksheet
Curated OER

Empirical and Molecular Formula Sheet

For Students 10th - Higher Ed
In this formulas worksheet, students solve eight problems and are required to write the empirical and molecular formulas given percentage of elements or quantities in mass.
PPT
Curated OER

Empirical Formula: From Percentage to Formula

For Teachers 9th - 12th
Starting with definitions of empirical and molecular formulas, this slide show guides pupils through the ways to calculate and produce chemical formulas as percentages and molar ratios. A number of examples are given for viewers to try...
Lesson Plan
Curated OER

Chemistry Practice

For Teachers 10th - 11th
In this chemistry overview worksheet, students calculated the volume of different gases and liquids given in a word problem. Students had to calculate the molecular mass and write the empirical formula and the molecular formula.
Worksheet
Curated OER

Molecular Mass and Percent Composition

For Students 9th - 12th
In this molecular mass and percent composition worksheet, students complete 5 sections where they determine atomic masses of given elements, they determine formula masses for given molecules, they find the molecular mass of 12 molecules...
Lesson Plan
Curated OER

Empirical Formulas

For Teachers 9th - 12th
Students investigate empirical formulas for molecules. In this empirical formulas lesson plan, students use paper ions to form formulas and they show these are empirical formulas. They use ions of carbon and hydrogen showing electron...
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...
Worksheet
Curated OER

Percentage Composition

For Students 9th - 12th
In this chemical compounds worksheet, students determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This worksheet has 10 problems to solve.
Worksheet
Curated OER

WS 4.5 Percent Composition and Empirical Formula

For Students 10th - 12th
In this compounds activity, students determine the empirical formulas and percent compositions of compounds given chemical formulas, mass of elements in compounds and percentages of elements in compounds.
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.
Worksheet
Curated OER

Chapter 2 and 3 Practice Worksheet - Formulas and Compounds

For Students 9th - 12th
In this formulas and equations worksheet, chemistry apprentices write the chemical formulas given the names. They calculate percent composition, balance equations, and calculate the mass of a substance present in a fertilizer. This is a...
Lesson Plan
Chymist

Empirical Formula of a Compound

For Students 9th - 12th
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.
Lesson Plan
Curated OER

Worksheet 2-2 Stoichiometric Tools

For Teachers 10th - 12th
In this stoichiometry worksheet, students solve a variety of problems including finding empirical and molecular formulas, determining molarities of solutions, determining molecular weights of compounds and calculating the percent mass of...
Worksheet
Curated OER

Unit 2 Quantities Review

For Students 9th - 12th
In this quantities in chemistry worksheet, students solve 13 review problems about percent composition, significant digits, the mole, simple and molecular formulas, balancing equations, stoichiometry, limiting reagents and percent yields.
Worksheet
Curated OER

Empirical and Molecular Formula

For Students 10th - 12th
In this formulas instructional activity, students review how to write compounds in their empirical formula and molecular formula. Then students complete 4 problems.
Worksheet
Curated OER

Empirical Formulas

For Students 9th - 12th
In this empirical formulas activity, students read about determining empirical formulas from chemical formulas. They determine the empirical formula given ten molecular formulas. They also find the molecular formulas given the mass and...
Worksheet
Curated OER

Exam Review: Chemistry Calculations

For Students 9th - 12th
In this chemistry calculations review worksheet, students solve 33 review problems about titrations, precipitates, pressure and volume of gases, combustion reactions, heat of combustion, molar concentrations and molecular formulas.
Lesson Plan
Curated OER

Moles

For Teachers 11th - Higher Ed
In this moles worksheet, students review solubility, moles of solute, molar mass, and colligative properties. This worksheet has 10multiple choice questions and 11 problems to solve.
Handout
National Institute of Open Schooling

Chemical Arithmetics

For Students 7th - 12th Standards
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...
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...
Worksheet
Curated OER

Practice Final

For Students 9th - 12th
A full-fledged practice final prepares pupils for their general chemistry final exam. If they complete these 57 multiple-choice questions correctly, they will be well-prepared. Note: even though the questions are multiple-choice, there...
Unit Plan
Steinhardt Apps

Kinetic Molecular Theory

For Teachers 9th - 12th Standards
Building off young chemists' knowledge of the states of matter, kinetic molecular theory is the focus of the unit. Eight days of lessons including multiple demonstrations, one lab experiment, directed instruction, and worksheets,...