The number of moles of the excess reagent can be used to calculate the moles of the products formed.TrueFalse

Answer: True

In a chemical reaction, the stoichiometry (the ratio of the reactants and products as described by the balanced chemical equation) plays a crucial role in understanding the quantities involved. When one reagent is in excess, the amount of product formed is determined by the limiting reagent, which is the reactant that gets completely consumed first during the reaction.

However, knowing the number of moles of the excess reagent can indeed help estimate how much of the other reactants were consumed, allowing for the calculation of the moles of products formed from the reaction. Thus, the statement is true, as the moles of the excess reagent can be used within the context of stoichiometry to ultimately calculate the products, though they may not directly dictate the maximum yield due to the limiting reagent's presence.

In summary, you can use the excess reagent's moles in conjunction with the balanced equation to assess product formation, making the statement "True."