Curated OER
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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Stoichiometry
For this stoichiometry worksheet, students 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...
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Stoichiometry
In this stoichiometry worksheet, students determine the molar ratio for chemical equations. Students calculate moles and grams for reactions. This worksheet has 10 problems to solve.
Curated OER
Moles
In this moles learning exercise, students calculate molar ratios, moles, and mass of different molecules. This learning exercise has 10 word problems.
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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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...