Question

what is the theoretical yield of aluminum oxide if 2.00 mol of aluminum metal is exposed to 1.80 mol of oxygen? express your answer with the appropriate units. view available hint(s)

Explanation:

Step1: Write balanced reaction

$$4\text{Al} + 3\text{O}_2 ightarrow 2\text{Al}_2\text{O}_3$$

Step2: Find limiting reactant

Al: $\frac{2.00\,\text{mol}}{4} = 0.500$; O₂: $\frac{1.80\,\text{mol}}{3} = 0.600$. Al is limiting.

Step3: Calculate theoretical yield

From Al: $2.00\,\text{mol Al} \times \frac{2\,\text{mol Al}_2\text{O}_3}{4\,\text{mol Al}} = 1.00\,\text{mol}$

Answer:

1.00 mol