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If you know the mass of an object, you can find the volume if you know the density. Since Density = mass/volume (D=M/V) , the volume is the mass divided by the density (V = M/D).

The mass tells you the physical amount, as in number of atoms, molecules, or moles present, which on Earth means the effective weight. In order to find the volume, which is the space that the object or substance takes up, you need to know the density of the material, i.e.. how concentrated the mass is.

Given a fixed mass, both volume and density can change with conditions, especially for gases.

Density = mass/volume so that Volume = mass/density

Example:

1000 grams of pure elemental Iron

Solid iron at standard temperature has a density of 7.87 g/cm3

So 1000 grams/7.87 g/cm3 gives a volume of about 127 cm3

(a kilogram of iron can make a cube about 5 cm on a side)

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Q: If you have the mass of an object how do you find the volume?
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Related questions

How do you find the mass of an object when you are given the volume and density of the object?

You can find the mass of the object by multiplying volume and density.


How do find the density of an object?

You have to find out its mass, and its volume. Then you divide its mass by its volume.


What do you need to find an object's density?

You need the object's volume and the object's mass to find the object's density. Then, you divide the object's mass by it's volume. The formula for density is d = density m = mass v = volume


How do you find the density of an object if you know its mass and volume?

Mass divided by volume.


How do you use mass and volume to find the density of an object?

mass divided by volume


Do you multiply the mass by its volume to find the density of an object?

No mass divided by volume


How do you find the mass of an object when given the volume?

Volume = mass / density


What information do you have to have before you can find the Density of an object?

You have to know the object's mass and its volume. Then its density is [ (mass) divided by (volume) ].


How do you find the mass of an object if you already have the density and volume?

density = mass/volume mass = density x volume


What is a method to find density?

Measure the mass and volume of the object. Divide the mass by the volume.


How do you find the density of an object?

Mass divided by volume Ex. Mass: 12 Volume:3 Density:4 g/cm Hope this helps!


How do you find mass if density and displacement are known?

Measure the amount of liquid that is displaced by the object in question (you will probably need a graduated cylinder). The amount of liquid displaced is the volume of the object. Then, since you have the volume of the object, you can find the mass of the object. Mass=Density x Volume.