Question

Calculate the number of moles of each reactant in the Introductory Activity (see steps 1 and 2). Identify the limiting reac- tant in the reaction and determine the theoretical amount of CaCO₃, that should be produced.

Answer 1

To calculate the number of moles of each reactant and the theoretical amount of product, follow these steps: determine moles of each reactant, compare moles to stoichiometric coefficient, calculate moles of product, convert moles to mass of product.

Step-by-step explanation:

To calculate the number of moles of each reactant in the reaction and identify the limiting reactant, you need to follow the steps outlined:

1. Determine the number of moles of each reactant by multiplying the volume of each solution by its molarity.
2. Compare the moles of reactants to their stoichiometric coefficient in the balanced chemical equation to determine the limiting reactant.
3. Use the mole ratios to calculate the moles of product that can be formed from the limiting reactant.
4. Convert the moles of product to mass of product using its molar mass.

Answer 2

To calculate the number of moles of each reactant, divide the given mass of each reactant by its molar mass. Compare the mole ratio of the reactants to the ratio in the balanced chemical equation to identify the limiting reactant. To determine the theoretical amount of product, multiply the mole ratio of the limiting reactant to the product by the number of moles of the limiting reactant.

Step-by-step explanation:

To calculate the number of moles of each reactant, you need to determine their molar masses. For titanium tetrachloride, the molar mass is 189.679 g/mol, and for magnesium, it is 24.305 g/mol. Using the given mass of each reactant, you can then calculate the number of moles by dividing the mass by the molar mass.

To identify the limiting reactant, you compare the mole ratio of the reactants to the ratio in the balanced chemical equation. Whichever reactant has a lower mole ratio is the limiting reactant. Finally, to determine the theoretical amount of CaCO₃ that should be produced, you use the mole ratio of the limiting reactant to CaCO₃ and multiply it by the number of moles of the limiting reactant.