In the reaction 4Fe + 3O2 → 2Fe2O3, how many moles of Fe are required to react w

Practice Questions

Q1
In the reaction 4Fe + 3O2 → 2Fe2O3, how many moles of Fe are required to react with 6 moles of O2?
  1. 4 moles
  2. 6 moles
  3. 8 moles
  4. 12 moles

Questions & Step-by-Step Solutions

In the reaction 4Fe + 3O2 → 2Fe2O3, how many moles of Fe are required to react with 6 moles of O2?
  • Step 1: Look at the balanced chemical equation: 4Fe + 3O2 → 2Fe2O3.
  • Step 2: Identify the ratio of Fe to O2 from the equation. It shows that 4 moles of Fe react with 3 moles of O2.
  • Step 3: Determine how many moles of Fe are needed for 6 moles of O2. We can set up a proportion based on the ratio.
  • Step 4: Use the ratio: (4 moles of Fe / 3 moles of O2) = (x moles of Fe / 6 moles of O2).
  • Step 5: Cross-multiply to solve for x: 4 * 6 = 3 * x.
  • Step 6: This simplifies to 24 = 3x.
  • Step 7: Divide both sides by 3 to find x: x = 24 / 3 = 8.
  • Step 8: Therefore, 8 moles of Fe are required to react with 6 moles of O2.
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