For the reaction given below, how many moles of aluminum will react if 12 moles of Br₂ react and 8 moles of AlBr₃ are produced? A) 4 B) 8 C) 12 D) 16 E) 40

Question

Quizplus · Accepted Answer

According to the balanced chemical equation, the mole ratio between Br₂ and Al is 1:2. Therefore, if 8 moles of AlBr₃ are produced, it means that 4 moles of aluminum were consumed. (8 moles AlBr₃ x 2 moles Al/1 mole AlBr₃ = 16 moles Al) However, since the question asks for the number of moles of aluminum that reacted and not produced, the answer is 4 moles.

For the Reaction Given Below, How Many Moles of Aluminum