Density = mass divided by volume, measured in kg per cubic metre
There is not necessarily any direct relation between mass and volume unless the mass is cross-referenced with density.
Depending on how you interpret the question, the relationship between those two properties either nonexistent or trivial. Volume is an extrinsic property and density (ratio of mass to volume) is an intrinsic property; there's no relation between them other than IF you know any two of the three properties (mass, volume, density) you can calculate the missing one.
They are not directly related. Here are some relationships that involve some of those quantities: weight = mass x gravity mass = volume x density
The volume and mass of a substance are independent of the substance itself, but depend upon how much there is of the substance The density of a substance is the relation between how much volume you have of a substance and how much mass that volume has (and vice-versa). It is independent of how much there is of the substance and is thus a characteristic of the substance.
The ratio between mass and volume is density.
mathematics and physics
The relation between mass(M), density(ρ) and volume(V) is given by: M = ρ x V. So mass can be calculated only if both density and volume are known. Density is a measure of amount of substance per unit volume, so mass can't be calculated until the volume of substance is known.
mass / volume is density.
you can multiply density and mass together to calculate the volume. The equation is v=dxm.
Density = Mass / Volume Mass = Density * Volume Volume = Mass / Density
For any object, the mass is the product of its volume and its density. In the case of Earth, that would be the averagedensity. The volume, of course, can be calculated on the basis of its radius. Use the formula for a sphere; that's close enough for most purposes.
The period is independent of the mass.