Study Guide Stoichiometry Student Editable

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Stoichiometry
Section 11.1 What is stoichiometry?
In your textbook, read about stoichiometry and the balanced equation.
For each statement below, write true or false.
_______true___________ 1. The study of the quantitative relationships between the amounts of reactants used and the amounts of products formed by a chemical reaction is called stoichiometry.
________true__________ 2. Stoichiometry is based on the law of conservation of mass.
_________false_________ 3. In any chemical reaction, the mass of the products is less than the mass of the reactants.
________true__________ 4. The coefficients in a chemical equation represent not only the number of individual particles but also the number of moles of particles.
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2.15 mol O2  . 2 mol H2O/1 mol O2, 4.30  ________________ mol H2O 5. How many moles of water are needed for 0.100 mol of sodium peroxide to react completely in this reaction?
0.100 mol Na2O2  2 mol H2O/2 mol Na2O2, 0.100  ________________ mol H2O 6. How many moles of oxygen are produced if the reaction produces 0.600 mol sodium hydroxide?
0.600 mol NaOH  . 1 mol O2/4 mol NaOH, 0.150  ________________ mol O2
Section 11.2 continued
In your textbook, read about mole-to-mass and mass-to-mass conversions.
Solving a mass-to-mass problem requires the four steps listed below. The equations in the boxes show how the four steps are used to solve an example problem. After you have studied the example, solve the problems below, using the four steps.
Example problem: How many grams of carbon dioxide are produced when 20.0 g acetylene (C2H2) is burned?
Step 1 Write a balanced chemical equation for the reaction.
Step 2 Determine the number of moles of the known substance, using mass-to-mole conversion.
Step 3 Determine the number of moles of the unknown substance, using mole-to-mole conversion.
Step 4 Determine the mass of the unknown substance, using mole-to-mass conversion. 7. In some mole-to-mass conversions, the number of moles of the known substance is given. In those conversions, which step of the above solution is not necessary? __________Step 2__________ 8. In a blast furnace, iron and carbon monoxide are produced from the reaction of

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