Chapter 9 Stoichiometry Notes - Weebly

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StoichiometryChapter 9, p. 275 - 294Intro to Stoichiometry Reaction Stoichiometry :Involves the mass relationships between reactants and products in a chemical reaction Coefficients in a chemical reaction represent the mole ratios of each substance that react together Example:4Fe + 3O2 2Fe2O3In order to get 2 moles of Fe2O3we need to react 4 moles of Fe and 3 moles of O2Example CalculationIf you had 16 moles of Fe, how many moles of Fe2O3would you get?4Fe + 3O2 2Fe2O316 mol Fe 2 mol Fe2O3= 16 X 2 mol Fe2O34 mol Fe 48 mol Fe2O3How many grams would that be? (molar mass of Fe2O3is g/mol)8 mol g Fe2O3= g1 mol Fe2O3Another ExampleHow many grams of Al are needed to produce moles of H2?

Stoichiometry Chapter 9, p. 275 - 294 Intro to Stoichiometry • Reaction Stoichiometry: Involves the mass relationships between reactants and products in a

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