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Stoichiometry and Reactant Limits Review Guide

Learn about stoichiometry, mole ratio, limiting reactants, theoretical and actual yield, percent yield calculations, and molar masses. Practice solving problems and finding mole ratios in chemical equations.

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Stoichiometry and Reactant Limits Review Guide

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  1. Chapter 11 Review

  2. Define the following: • Stoichiometry • Mole ratio • Excess reactant • Limiting reactant • Theoretical yield • Actual yield • Percent yield

  3. Find the following molar masses: • O2 • O • AlPO4 • NaCl • C6H5Cl • CuO

  4. Determine the number of steps for the following problems (1, 2, or 3): Given the following equation: 2 KClO3 –> 2 KCl + 3 O2 • How many moles of O2 can be produced by letting 12.00 moles of KClO3 react? • How many grams of O2 can be produced by letting 34.7g of KClO3 react? • How many moles of O2 can be produced by letting 14.6g of KClO3 react?

  5. Create the following mole ratios: • __Ag(s) + __H2S(g) + __O2(g) __Ag2S(s) + __H2O(l)(Equation must first be balanced.) • Ag : H2S • O2 : Ag2S • Ag2S : H2O • O2 : H2S • Ag : O2 • H2O : H2S How many ratios can this equation form?

  6. What is the molar ratio of all elements/compounds shown?

  7. Solve the following: Given the following equation: 2 KClO3 –> 2 KCl + 3 O2 • How many moles of O2 can be produced by letting 12.00 moles of KClO3 react?

  8. Solve the following: Given the following equation: 2 KClO3 –> 2 KCl + 3 O2 • How many grams of O2 can be produced by letting 34.7g of KClO3 react?

  9. Solve the following: Given the following equation: 2 KClO3 –> 2 KCl + 3 O2 • How many moles of O2 can be produced by letting 14.6g of KClO3 react?

  10. Solve the following: Given the following equation: Al2(SO3)3 +  6 NaOH  3 Na2SO3  +  2 Al(OH)3 • If 10.0 g of Al2(SO3)3 is reacted with 10.0 g of NaOH, determine the  limiting reactant

  11. Solve the following: Given the following equation:2 FePO4 + 3 Na2SO4 1 Fe2(SO4)3 + 2 Na3PO4 • What is the percent yield of this reaction if takes place with 25g of FePO4and an excess of Na2SO4, and produces 18.5g of Fe2(SO4)3

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