Density is the ratio of the mass of an object to its volume. 3.4 Determining Density Density is the ratio of the mass of an object to its volume.

3.4 Determining Density Each of these 10-g samples has a different volume because the densities vary. A 10-g sample of pure water has less volume than 10 g of lithium, but more volume than 10 g of lead. The faces of the cubes are shown actual size. Inferring Which substance has the highest ratio of mass to volume?

3.4 Determining Density Density is an intensive property that depends only on the composition of a substance, not on the size of the sample.

Intensive property is a property that depends on Intensive property is a property that depends on the type of matter in a sample, not the amount of matter.

Rank materials according to their densities. Determining Density Simulation 1 Rank materials according to their densities.

Density and Temperature 3.4 Density and Temperature Experiments show that the volume of most substances increases as the temperature increases. Meanwhile, the mass remains the same. Thus, the density must change. The density of a substance generally decreases as its temperature increases.

3.10

3.10

3.10

for Sample Problem 3.10

3.11

3.11

3.11

for Sample Problem 3.11