Considering the given reaction, 109 g of Fe are needed to generate 5.25 g of H₂.
What is stoichiometry?
Stoichiometry refers to the relationship between the quantities of reactants and products before, during, and following chemical reactions.
- Step 1: Write the balanced equation.
3 Fe + 4 H₂O ⇒ 4 H₂ + Fe₃O₄
- Step 2: Calculate the mass of Fe needed to produce 5.25 g of H₂.
We will consider the following relationships.
- The molar mass of Fe is 55.85 g/mol.
- The molar ratio of Fe to H₂ is 3:4.
- The molar mass of H₂ is 2.02 g/mol.
[tex]5.25gH_2 \times \frac{1molH_2}{2.02gH_2} \times\frac{3molFe}{4molH_2} \times\frac{55.85gFe}{1molFe} = 109gFe[/tex]
Considering the given reaction, 109 g of Fe are needed to generate 5.25 g of H₂.
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