Question Detail
Question
In the sample problem, when 2.8 mol of TiCl₄ reacts with 5.4 mol of Mg according to TiCl₄(g) + 2Mg(s) → Ti(s) + 2MgCl₂(l), which reactant is limiting?
Correct Answer
Option B is the correct answer.
Detailed Explanation
2.8 mol TiCl₄ requires 5.6 mol Mg (2.8 × 2). Since only 5.4 mol Mg is present, Mg is limiting and TiCl₄ is in excess.
Hint
The notes provide this exact calculation showing Mg is limiting.