How to calculate the density of matter, to formula and examples, thank you

How to calculate the density of matter, to formula and examples, thank you

The mass per unit volume of a substance is called the density of the substance. The international unit of density is kilogram / m3, and the formula is ρ = m / v. density is an attribute of the substance itself. It does not change with the shape and state of the object, nor does it change with the position of the object