The density of a material is defined by the equation: density = mass / volume, ρ = m / V, where density, ρ, in kilograms per metre cubed, kg/m³ mass, m, in kilograms, kg, volume, V, in metres cubed, m³.
There 3 main states of matter: solids (defined shape, regularly arranged particles, high density), liquids (can change shape, particles can move, lower density), gases (can change shape, randomly distributed particles, low density).
A container is filled with a fertiliser that has an average density of 780 kg/m³. What is the maximum mass of a container with the fertiliser, if it has a volume of 550 m³ and according to regulations only 80 % of it can be filled? The mass of the actual metal container can be neglected.