The quantity of mass of a substance per unit volume is known as density. Density of a substance can be calculated by taking ratio of mass to volume. The symbol which is used to represent density is ρ.

ρ= m/ V

ρ= density of the substance

m = mass

V= volume

The standard international unit for density is kilogram per meter cube. Density of a substance can be calculated in kilogram per litter and grams per milliliter. According to the ideal gas equation, the density of an ideal gas is;

ρ= MP/RT

M= molar mass

P = pressure

R = ideal gas constant

T= temperature

If a substance is incompressible, then its density is constant.

ρ= m/ V

ρ= density of the substance

m = mass

V= volume

The standard international unit for density is kilogram per meter cube. Density of a substance can be calculated in kilogram per litter and grams per milliliter. According to the ideal gas equation, the density of an ideal gas is;

ρ= MP/RT

M= molar mass

P = pressure

R = ideal gas constant

T= temperature

If a substance is incompressible, then its density is constant.