How Tightly Packed DEnsity

1. Notes

2. The student will:
 Accurately measure the mass and volume
of a substance using the proper measuring
devices
 Demonstrate how the density of a
substance is determined
 Describe how density can be used to
determine the identity of a substance

3. General Property
Physical Property
Characteristic Property
Density

4. Observable or
measurable
property of
matter. Mass and
Volume
 All matter has
Mass & Volume

5. Any observable
property of
matter.
 Color
 Texture
 Hardness
 Luster
 Etc.

6.  A physical property
that is unique to the
substance, A
characteristic
property can be used
to identify the
substance
▪ Density
▪ Boiling Point
▪ Melting Point
▪ Reactivity

7. Density is a
Characteristic
Property it is a
unique
characteristic
of a substance

8. The density of a substance is
constant and is not dependent
on the shape or size .

9. Determined by the spacing between the
particles as well as mass of the particles
themselves
 In general solids are more dense than
liquids
 Gasses are much less dense than
liquids

10. The density of water (H2O)
▪1 g/cm3
= 1 g/mL
▪If a substance has a density less than
water it will float no matter what its
weight.

11. The ratio of
the mass of a
substance to
the volume
of a
substance
D = m/V

12. When a liquid, density is written as
grams per milliliter (g/mL)
When a solid, density is written in
grams per cubic centimeter (g/cm3
)

13. Calculate the Mass of the substance (g)
▪ Calculate the volume of the substance
(cm3)
▪ Apply the formula for density (D=m/V)
▪ Write density as g/cm3

14.  Calculate the mass of the full container (mf)
 Calculate the mass of the empty container
(me)
 Subtract the empty mass from the full mass
to calculate the mass of the liquid
 mf–me=ml
▪ Apply the formula for density (D=m/V)
▪ Write density as g/mL