Answer
b. True. A is the limiting reactant because you need 6 moles of A and have 4 moles.
Work Step by Step
a. False. The limiting reactant is not determined by which reactant has the higher molar mass; instead, the limiting reactant is determined by moles ratios and moles available.
b. True. To completely consume 4 moles of B, we need 6 moles of A when we only have 4 moles of A.
c. False. A is the limiting reactant has we have only 4 moles of A to react with 2 moles of B which require 6 moles of A.
d. False. A is the limiting reactant has we have only 4 moles of A to react with 2 moles of B which require 6 moles of A.
e. False. A is the limiting reactant as we only have 4 moles when we require 6 to completely consume all of reactant B.
