Refer to Exercise 10. How much phosphorus tribromide would be formed if 10.00 g of phosphorus reacted with 59.93 g of bromine, and how do you know?
Exercise 10
In a lab experiment, 7.75 g of phosphorus reacts with bromine to form 67.68 g of phosphorus tribromide.
(a) Calculate the percentage by mass of P in phosphorus tribromide.
(b) How many grams of bromine reacted, and how do you know?