Question

PLEASE HELP!!!! Assuming a lacrosse ball weighs 5.5 ounces and is made of mainly rubber which has a mass of 82.2 g/mol, how many particles are in a lacrosse ball?

Answer 1

11.412 x 10^23.

Step-by-step explanation:

5.5 oz = 155.92 g

155.92 g x (1 mol/82.2 g) = 1.8956 mol

(6.02 x 10^23) x 1.8956 = 11.412 x 10^23