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Curated OER
Percentage Composition and Empirical & Molecular Formula
In this compounds worksheet, students determine the empirical and molecular formulas for given compounds. This worksheet has 10 problems to solve.
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Empirical and Molecular Formulas
In this compounds learning exercise, students write the empirical formulas or the molecular formula for the given chemical compounds. This learning exercise has 20 problems to solve.
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Empirical and Molecular Formula Sheet
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.
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Empirical Formula
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...
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Oxidation Numbers and Ionic Compounds
In this oxidation numbers and ionic compounds instructional activity, students write the formula for compounds given ions, they write the ions given formulas, they list oxidation numbers for elements, they write formulas for compounds...
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Empirical Formula: From Percentage to Formula
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...
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Chemical Calculations and Chemical Formulas
In this stoichiometry worksheet, students calculate molar masses, empirical and molecular formulas to solve 105 problems and short answer questions.
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...
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1999 U.S. National Chemistry Olympiad Part II
A variety of topics including reaction rates, combustion reactions, periodic trends, and ionization reactions are included in this exam. Test takers also practice calculating empirical and molecular formulas of compounds.
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Chemistry Practice
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.
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Empirical and Molecular Formula
In this formulas worksheet, learners review how to write compounds in their empirical formula and molecular formula. Then students complete 4 problems.
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Worksheet 2-2 Stoichiometric Tools
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...
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Empirical Formulas
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...
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.
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Percentage Composition
In this chemical compounds activity, students determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This activity has 10 problems to solve.
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Chapter 6 - Bonds
Although there are only 16 questions here, this chemistry handout makes a terrific unit assessment. It queries youngsters on the properties of ionic and covalent compounds, relates bond length tho stability and enrgy, compares polar and...
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Chapter 2 and 3 Practice Worksheet - Formulas and Compounds
In this formulas and equations learning exercise, 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....
Virginia Department of Education
Finding the Formula and Percent Composition
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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Empirical Formulas
For this empirical formulas worksheet, high schoolers 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...
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Formula Mass
In this formula mass learning exercise, students read about molecular substances and their formula masses. They find the formula masses for six compounds using the atomic masses of its elements.
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Stoichiometry
In this stoichiometry worksheet, students review mole conversions, percent composition, empirical formulas and molecular formulas. This worksheet has 6 problems to solve.
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Final Worksheet
In this chemistry worksheet, students complete 15 short answer questions and problems on empirical and molecular formula, naming and writing chemical formula of compounds.
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WS 4.5 Percent Composition and Empirical Formula
In this compounds worksheet, students determine the empirical formulas and percent compositions of compounds given chemical formulas, mass of elements in compounds and percentages of elements in compounds.
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Formulas from Masses
For this mass worksheet, students determine the percentage composition of given compounds. Students write the empirical formula from the percentage composition. This worksheet has 5 problems to solve.