PV = nRT calculates n.
Then n = grams/molar mass. You know molar mass and n, calculate grams Cl2.
Then %Cl2 = [grams Cl2/grams sample]*100
A 2.85g sample of an unknown chlorofluorocarbon is decomposed and produces 560mL of chlorine gas at a pressure of 754mmHg and a temperature of 298K .
What is the percent chlorine (by mass) in the unknown chlorofluorocarbon?
1 answer
1 answer