We can calculate for the volume using the formula:
volume = mass / density
Therefore:
volume = 5.72 kg / (0.78 kg / L)
volume = 7.33333 L
We know that 1 mL = cm^3 and that 1 L = 1000 mL, therefore: 1 L = 1000 cm^3
volume = 7.33333 L * (1000 cm^3 / L)
volume = 7,333.33 L