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What is the limiting reagent when 5 moles of A react with 3 moles of B in the re

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Question: What is the limiting reagent when 5 moles of A react with 3 moles of B in the reaction A + 2B → C?

Options:

  1. A
  2. B
  3. C
  4. None

Correct Answer: B

Solution: 

The reaction requires 2 moles of B for every mole of A. For 5 moles of A, 10 moles of B are needed. Since only 3 moles of B are available, B is the limiting reagent.

What is the limiting reagent when 5 moles of A react with 3 moles of B in the re

Practice Questions

Q1
What is the limiting reagent when 5 moles of A react with 3 moles of B in the reaction A + 2B → C?
  1. A
  2. B
  3. C
  4. None

Questions & Step-by-Step Solutions

What is the limiting reagent when 5 moles of A react with 3 moles of B in the reaction A + 2B → C?
  • Step 1: Identify the reaction equation: A + 2B → C.
  • Step 2: Determine how many moles of B are needed for the given moles of A.
  • Step 3: Since the reaction requires 2 moles of B for every 1 mole of A, calculate the moles of B needed for 5 moles of A: 5 moles of A × 2 moles of B/mole of A = 10 moles of B.
  • Step 4: Compare the moles of B needed (10 moles) with the moles of B available (3 moles).
  • Step 5: Since only 3 moles of B are available and 10 moles are needed, B is the limiting reagent.
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