Calculate the mass in kilograms of chlorine in 25 kg of each chlorofluorocarbon

Chlorofluorocarbons are compounds containing, Carbon (C), Fluorine (F) and Chlorine (Cl)

For example, let us consider the following CFC, tri-fluoro chloro methane CF3Cl. The amount of Cl in 25 Kg of the above cab be calculated as shown

Molecular mass of CF3Cl = 12 + 3*19 + 35.5 = 104.5 g/mol

In CF3Cl, there is 1 mole of Cl for every 1 mole of CF3Cl

The % Cl in the given formula mass of the CFC = (35.5/104.5) * 100 = 33.97 %

Therefore the amount of Cl in a 25 kg sample of CFC = 33.97% * 25 Kg = 8.49 kg