
Answer
🧪 Stoichiometry Problem: FeS to Fe2O3
🔍 Problem Statement
Use the following balanced chemical equation to calculate the number of moles of Fe2O3 produced from 1.0 mole of FeS:
4 FeS + 7 O₂ → 2 Fe₂O₃ + 4 SO₂
📘 Step-by-Step Solution
Step 1: Analyze the Balanced Equation
The equation tells us that:
- 4 moles of FeS produce 2 moles of Fe₂O₃
- Therefore, the mole ratio FeS : Fe₂O₃ = 4 : 2 = 2 : 1
Step 2: Use the Mole Ratio
Given: 1.0 mole of FeS
Using the ratio:
1.0 mol FeS × (2 mol Fe₂O₃ / 4 mol FeS) = 0.5 mol Fe₂O₃
✅ Final Answer
0.5 moles of Fe2O3
🧠 Key Concepts
| Concept | Explanation |
|---|---|
| Stoichiometry | The calculation of reactants and products in chemical reactions. |
| Balanced Equation | Ensures conservation of mass and correct mole ratios. |
| Mole Ratio | Ratio between substances in a reaction based on coefficients. |
| Limiting Reactant | Not applicable here, since only FeS is being considered. |
