Density. A.Property of matter B.Physical characteristic of a substance C.Can be used to identify a substance D.Ratio of mass to volume for a specific.

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Presentation transcript:

Density

A.Property of matter B.Physical characteristic of a substance C.Can be used to identify a substance D.Ratio of mass to volume for a specific substance I.What is Density?

A.Density = B.Units 1.Liquid: g/mL 2.Solid: g/cm 3 3.Gas: g/L II.Formula Mass Volume D M V 1 cm 3 = 1mL

A.Density varies with temperature B.Density is inversely proportional to temperature III.Properties

A.Water is most dense at 4°C (1.00 g/ml) B.Water at 100°C is g/mL C.Water at 0°C is g/mL IV.Water

A.What is the density of a substance if the mass is 354 g and the volume is 243 mL? V.Examples

B.Pure lead has the density of g/mL. What is the mass of the lead if a piece of lead was placed in a graduated cylinder and the water level rose 5 mL?

C.A 34.6 g piece of gold was placed in a graduated cylinder containing 25.0 mL. The water rose to 27.4 mL. What is the density of the gold? Is the gold pure if the actual density of gold is 19.3 g/ mL?

D.The density of copper is 8.96 g/mL. What is the volume of 19.2g?