Final answer:
In the reaction between TiCl4 and O2 to produce TiO2, TiCl4 is the limiting reactant because it has fewer moles than required for a 1:1 reaction with the provided O2.
Step-by-step explanation:
To determine the limiting reactant in the reaction between TiCl4 and O2 to produce TiO2, we need to look at the stoichiometry of the balanced reaction:
TiCl4 + O2 --> TiO2 + 2Cl2
The balanced equation tells us that one mole of TiCl4 reacts with one mole of O2 to produce one mole of TiO2 and two moles of Cl2. To identify the limiting reactant, we'll perform the following steps:
- Calculate the mole ratio of TiCl4 to O2 that is needed for the reaction, which is 1:1.
- Compare the actual mole ratios provided, which are 3.5 moles of TiCl4 and 4.5 moles of O2.
- Determine which reactant will be consumed first based on the stoichiometric ratios. Since both reactants are present in more than a 1:1 ratio, and there is more O2 than TiCl4, TiCl4 is the limiting reactant because it has fewer moles than required for a 1:1 reaction with the provided O2.
Therefore, the correct answer is B)TiCl4 is limiting.