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Stoichiometry in Chemistry

Stoichiometry is founded on the law of conservation of charge, mass, reactants, and volume. Calculations are based on balanced equations and the mole ratio of particles. Learn about actual vs. theoretical yield in reactions and the concept of limiting reactants. Practice mole ratio calculations to master stoichiometry.

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Stoichiometry in Chemistry

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  1. Stoichiometry Review

  2. Stoichiometry is based on the law of conservation of 10 • charge • mass • reactants • volume

  3. In a balanced equation, the number of individual particles and the number of moles of particles are represented by the 10 • chemical symbols • coefficients • molar masses • subscripts

  4. Every stoichiometric calculation uses a balanced equation. 10 • True • False

  5. Percent yield of a product is a measure of a reaction’s 10 • efficiency • heat production • rate • spontaneity

  6. The amount of product actually produced by a chemical reaction is called 10 • actual yield • percent yield • theoretical yield

  7. The reactant that is consumed first in a chemical reaction is called the ___ reactant. 10 • excess • limiting • experimental • theoretical

  8. The ___ reactant determines the amount of product formed in a chemical reaction. 10 • excess • limiting • experimental • theoretical

  9. A piece of wood is burning in a campfire. The limiting reactant is the 10 • oxygen • wood • fire • heat

  10. What is the mole ratio of hydrogen to oxygen in the following equation:2H2 + O2 2H2O 10 • 1:1 • 1:2 • 2:1 • 2:2

  11. If 3 moles of oxygen react with an excess of hydrogen according to the following equation, how many moles of water will be produced? 2H2 + O2 2H2O 10 • 9 • 6 • 3 • 2

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