Question

Carlos is making phosphorus trichloride using the equation below. He uses 15.5 g of phosphorus and collects 50.9 g of phosphorus chloride.

2P +3Cl2 2PCl3

How much chlorine reacted with the phosphorus?

15.5 g
17.7 g
35.4 g
66.4 g

Answer 1

Answer: 35.4 g

2 moles of phosphorous chloride are produced by = 3 moles of  

Thus 0.37 moles of phosphorous chloride are produced by= of  

Mass of  

Thus 35.4 g of chlorine reacted with the phosphorus

Answer 2

Answer 35.4g
That’s the answer