Practice Steps to Identify the Limiting Reactant - 4.1 | Stoichiometry | IB 10 Sciences (Group 4) – Chemistry
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Steps to Identify the Limiting Reactant

4.1 - Steps to Identify the Limiting Reactant

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Identify the limiting reactant in the reaction 2A + B → C, if you have 3 moles of A and 1 mole of B.

💡 Hint: Use the mole ratio from the balanced equation.

Question 2 Easy

What does the limiting reactant determine in a chemical reaction?

💡 Hint: Think about what happens when one reactant is used up.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a limiting reactant?

The reactant that is least abundant
The reactant that limits the product
The reactant that is in excess

💡 Hint: Think about what is used up first in a reaction.

Question 2

True or False: The theoretical yield is always achieved in a chemical reaction.

True
False

💡 Hint: Consider factors that affect yield in a reaction.

3 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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.

💡 Hint: Convert the masses to moles, apply the ratios, and then ascertain product yields.

Challenge 2 Hard

For the reaction C₆H₁₂ + 9O₂ → 6CO₂ + 6H₂O, if you start with 80 grams of C₆H₁₂ and excess oxygen, calculate the amount of water produced.

💡 Hint: Understand the ratios produced per balanced equation and use them to calculate the final product.

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