In the reaction 4Al + 3O2 → 2Al2O3, how many moles of Al2O3 are produced from 12

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Question: In the reaction 4Al + 3O2 → 2Al2O3, how many moles of Al2O3 are produced from 12 moles of Al?

Options:

Correct Answer: 6 moles

Solution:

According to the stoichiometry, 4 moles of Al produce 2 moles of Al2O3. Therefore, 12 moles of Al will produce (12/4) x 2 = 6 moles of Al2O3.

In the reaction 4Al + 3O2 → 2Al2O3, how many moles of Al2O3 are produced from 12 moles of Al?

In the reaction 4Al + 3O2 → 2Al2O3, how many moles of Al2O3 are produced from 12 moles of Al?

Step 1: Look at the chemical equation: 4Al + 3O2 → 2Al2O3.
Step 2: Identify the ratio of Al to Al2O3 from the equation. It shows that 4 moles of Al produce 2 moles of Al2O3.
Step 3: Determine how many moles of Al you have. In this case, you have 12 moles of Al.
Step 4: Use the ratio from Step 2 to find out how many moles of Al2O3 can be produced from 12 moles of Al.
Step 5: Set up the calculation: (12 moles of Al) / (4 moles of Al) = 3. This means you have 3 times the amount of Al compared to the 4 moles in the equation.
Step 6: Now multiply the result from Step 5 by the number of moles of Al2O3 produced per 4 moles of Al: 3 x 2 moles of Al2O3 = 6 moles of Al2O3.
Step 7: Conclude that from 12 moles of Al, you can produce 6 moles of Al2O3.

Stoichiometry – The calculation of reactants and products in chemical reactions based on balanced equations.