1. Density
Chemistry
Mrs. Coyle

2. Density
Density= Mass
Volume
D= m V

3. Mass Mass: Amount of matter in a substance. Don’t confuse with weight.
Weight: the force with which the earth pulls on the substance.

4. Question Which weighs more? 50 kilograms of iron Or
50 kilograms of feathers

5. Question
Which has a greater density?
iron Or
feathers

6. Common Units of Density
Density= Mass
Volume
g/mL = g/cm kg/m3
1 cm3=1 mL
1 dm3=1L

7. Densities of Common Substances

8. Density as a Function of Temperature
For most substances,
as temperature increases
the volume increases
and as a result the density decreases.

9. Density of Water

12. Density of Water At 4oC water has its maximum density of 1g/cm3
Convert to kg/m3:
1000kg/m3

13. Note Density is an intensive physical property.
(Does not depend on amount of matter in the sample)

14. Density Column

15. Galilean Thermometer