Density, mass per unit volume of a substance. The formula for density is d=M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of gram per cubic centimeter. For example, the density of water is 1 gram per cubic centimeter.
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Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ρ (the lower case Greek letter rho), although the Latin letter D (or d) can also be used: [1] where ρ is the density, m is the mass, and V is the volume.
Learn the core concepts and math behind density in chemistry. This tutorial explains the density formula, units, and real-world applications to help students master this essential property of matter.
To calculate density, you divide the mass by the volume: Density = Mass ÷ Volume. Density is often written in mathematics as the symbol p or D. Mass can be written as m, and volume can be written as V. So if you want to be fancy, the formula looks like this: ρ = m/V.
Density describes how much matter is packed into a given amount of space. A substance with high density contains a large amount of mass in a small volume, while a substance with low density contains less mass in the same volume.
Learn about density as the relationship between mass and volume and how to calculate and compare the densities of different materials. Explore how density explains why some objects float while others sink and how density varies with temperature.