How many kilograms of chlorine are in 30kg of each of the following chlorofluorocarbons (CFC's)?
CF2Cl2 -in kg's;
CFCl3 -in kg's;
C2F3Cl3 -in kg's?
4 answers
I will be happy to critique your thinking.
ok...so I took 30,000g * 1/120.913g/mol = 248.1122g. Then I went: 248.1122g * 70.906g/mol & got: 17592g = 18kg. Does this look correct? should I carry it through to the rest?
I obtained 17.592 kg chlorine which rounds to 18 kg to two significant figures. Note: You need not convert 30 kg to grams and convert back.
30 kg x (2 mols Cl/1 mol CF2Cl2) = 30 x (70.905/120.913) = 17.592 kg chlorine, then round to 18 kg. The others are done the same way.
30 kg x (2 mols Cl/1 mol CF2Cl2) = 30 x (70.905/120.913) = 17.592 kg chlorine, then round to 18 kg. The others are done the same way.
thank you.
2 answers