the canister contains a gas used to fuel a burner
the volume of the white gas to be used is - 1.45 L
density of white gas is 0.710 g/cm³
density is defined as the mass per unit volume
the mass of 1 cm³ of white gas is - 0.710 g
1 cm³ is equivalent to 0.001 L
the volume given is in Litres
so if 0.001 L has a mass of 0.710 g
then 1.45 L have a mass of - 0.710 g / 0.001 L x 1.45 L = 1030 g
since 1000 g is equivalent to 1 kg
mass of white fuel is - 1030 g/1000 g/kg = 1.03 kg
theres 1.03 kg of fuel in one canister