Practice Steps To Identify The Limiting Reactant (4.1) - Stoichiometry

Practice: Steps to Identify the Limiting Reactant

Lesson 4.1Stoichiometry

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11 questions

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6 sample questions

Question 1.
Identify the limiting reactant in the reaction 2A + B → C, if you have 3 moles of A and 1 mole of B.
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Use the mole ratio from the balanced equation.
Question 2.
What does the limiting reactant determine in a chemical reaction?
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Think about what happens when one reactant is used up.
3Question 3.
What is a limiting reactant?
- The reactant that is least abundant
- The reactant that limits the product
- The reactant that is in excess
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Think about what is used up first in a reaction.
4Question 4.
True or False: The theoretical yield is always achieved in a chemical reaction.
- True
- False
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Consider factors that affect yield in a reaction.
Question 5.
In the reaction 4H₂ + O₂ → 4H₂O, you start with 10 grams of H₂ and 15 grams of O₂. Determine the limiting reactant and the theoretical yield of water.
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Convert the masses to moles, apply the ratios, and then ascertain product yields.
Question 6.
For the reaction C₆H₁₂ + 9O₂ → 6CO₂ + 6H₂O, if you start with 80 grams of C₆H₁₂ and excess oxygen, calculate the amount of water produced.
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Understand the ratios produced per balanced equation and use them to calculate the final product.

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