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Sia

15240672380's Question
Chemistry
Posted about 1 year ago

Fe2O3+2Al=2Fe+Al2O3\mathrm{Fe} 2 \mathrm{O} 3+2 \mathrm{Al}=2 \mathrm{Fe}+\mathrm{Al} 2 \mathrm{O} 3 Assuming you have 53.96 g53.96 \mathrm{~g} of Al\mathrm{Al} and 3 moles of iron (ii) oxide. what is the limiting reagent? And what is the mass of Al2O3\mathrm{Al} 2 \mathrm{O} 3 produced?
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Answer from Sia
Posted about 1 year ago
Solution
1
Calculate moles of Al: First, we need to calculate the number of moles of aluminum (Al) using its molar mass. The molar mass of Al is 26.98g/mol26.98 \, \text{g/mol}
2
Mole ratio comparison: The balanced chemical equation shows that 2 moles of Al react with 1 mole of Fe2O3\text{Fe}_2\text{O}_3. We compare the mole ratio of Al to Fe2O3\text{Fe}_2\text{O}_3 to find the limiting reagent
3
Identify limiting reagent: Using the stoichiometry of the reaction, we determine which reactant will be consumed first and thus limit the reaction
4
Calculate mass of $\text{Al}_2\text{O}_3$ produced: Once the limiting reagent is identified, we use its amount to calculate the mass of aluminum oxide (Al2O3\text{Al}_2\text{O}_3) produced, based on the stoichiometry of the balanced equation
Answer
The limiting reagent is Al, and the mass of Al2O3\text{Al}_2\text{O}_3 produced is [insert calculated mass here] grams.
Key Concept
Limiting reagent determines the amount of product formed in a chemical reaction.
Explanation
The reactant that is completely consumed in a reaction limits the amount of product that can be formed, and is thus called the limiting reagent.

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