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Volume density is a measurement of the space a substance occupies versus its mass, often expressed as milliliters per gram (ml/g). A substance’s volume density will differ depending on what the item is made from. A material’s volume density is the measurement of how much space it takes up compared to mass and is often referred to as specific gravity.
In general, the volume density of a material can be quantified by taking an empty container and filling it with a sample of the material. The container is then weighed to determine the total mass of the material, and the volume of the material is measured via the container or otherwise. Then, by dividing the total mass by total volume of the sample, the volume density becomes apparent.
The greater the volume density of a material, the denser it becomes and vice versa. Volume density is an important property of materials since it can impact how much a material weighs. For instance, materials that have a higher volume density will require a greater amount of force to lift because of its greater mass.
In order to measure the volume density of a material in more precise ways, more complex instruments are often required to gain more sensitivity in the test results. For example, a digital hydrometer can measure the actual volume density of a liquid sample in comparison to a fixed-weight of one milliliter of water.
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The volume density of a material can be used to determine its weight and other properties. To measure a material’s volume density, an empty container is filled with a sample and weighed to determine the total mass. Then the total volume of the sample is measured, and the total mass divided by the total volume determines the volume density. For more precise measurements, instruments such as a digital hydrometer can be used to measure the actual volume density of a liquid sample. Materials that have a higher volume density will require a greater amount of force to lift, since they will have a greater mass. Volume density is an important property of materials as it can have considerable impacts on their physical properties and uses.
