chemistry 1 help

Question

If  moles of  combine with  moles of , how many moles of  can form? What is the limiting reagent?

Step 1: Find the number of moles of  each starting material could form.

Answer 1

More of the same. Use the same approach that has been shown to you in all of your previous questions. But we also need to consider limiting reactant. Anytime a question gives you mass or moles of BOTH reactants, you MUST find the limiting reactant.

27 mol MnO2 x 3 moles Mn/3 moles MnO2 = 27 moles Mn

31 mol Al x 3 moles Mn/4 moles Al = 23.25 moles Mn = 23 moles Mn <-- Al IS LIMITING REACTANT