Density The ratio between the object’s mass and its volume.

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Density The ratio between the object’s mass and its volume. Chapter 3.4 Density The ratio between the object’s mass and its volume.

Base Unit Length l meter m Mass m kilogram kg Volume v cm3 Temp T SI Units Symbol Base Unit Abbrev. Quantity Length l meter m Mass m kilogram kg Volume v cm3 cubic centimeter Temp T kelvin K

M V D = Density Mass Density = Volume Density is a characteristic (physical) property that depends only on the composition of a substance, not on the size of the sample. The composition of a mixture can vary therefore the density can vary. M V D =

Density Mass (g) Volume (cm3)

Sample Problem 3-5 A copper penny has a mass of 3.1g and a volume of 0.35 cm3. What is the density of copper? Density = mass volume Density = 3.1g 0.35 cm3 = 8.8571 g/cm3 = 8.9 g/cm3

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