Volume is the amount of space occupied by a substance, while mass is the amount of matter it contains. The amount of mass per unit of volume is a sample's density.
Capacity is the measure of the content of a vessel that holds liquids, grains, or other materials that take the shape of the container. Capacity is not necessarily the same as volume. It is always the interior volume of the vessel.
Units of capacity include the liter, pint, and gallon, while the unit of volume SI is derived from a unit of length. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. The relationship between these units and the cubic meter is easily shown:.
Note that in the expression dm 3 the exponent includes the prefix as well as the base unit. A cubic decimeter is one-thousandth of a cubic meter, not one-tenth of a cubic meter. Two other units of volume are commonly encountered in the chemical laboratory — the liter l and the milliliter ml — one-thousandth of a liter. The liter was originally defined as the volume of one kilogram of pure water at the temperature of its maximum density 3.
The liter is now exactly one-thousandth of a cubic meter, that is, 1 dm 3. The implications of this simple fact are enormous: when a lake freezes, ice crusts at the surface and insulates the liquid below from freezing, while at the same time allowing the colder water with a temp of approx.
If ice did not float, it would sink to the bottom, allowing more ice to form and sink, until the lake froze solid! Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:.
Skip to main content. Introduction to Chemistry. Search for:. Volume and Density. Learning Objective Describe the relationship between density and volume. Key Points The volume of a substance is related to the quantity of the substance present at a defined temperature and pressure. The volume of a substance can be measured in volumetric glassware, such as the volumetric flask and the graduated cylinder. Density indicates how much of a substance occupies a specific volume at a defined temperature and pressure.
The density of a substance can be used to define the substance. Water is unusual because when water freezes, its solid form ice is less dense than liquid water, and thus floats on top of liquid water.
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