Download Properties of Matter

PROPERTIES OF MATTER
HOW DO WE CLASSIFY MATTER?
Physical
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Can be determined
without in any way
changing its identity
May be extensive or
intensive .
Extensive: Depends upon
how much of a particular
sample you have on hand.
Ex: mass, weight, volume
Intensive: Does not
depend on the size of a
sample. Ex: Color, odor,
luster
Chemical
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Can be determined by
its ability to be
changed into a new
and different
substance. Ex:
Ability to burn, ability
to react with air
SORT THE FOLLOWING INTO PHYSICAL
(EXTENSIVE OR INTENSIVE) OR CHEMICAL
PROPERTY
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Combustibility
Mass
Malleability
Melting point
Solubility
Conductivity
Ductility
Ability to rust
Ductility
Boiling point
Abiltity to tarnish
Denisty
Flammability
CHECK YOUR ANSWERS:
Physical
Mass (extensive)
 Malleability
(intensive)
 Melting point
(intensive)
 Solubility (intensive)
 Ductility (intensive)
 Boiling point
(intensive)
 Density (intensive)
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Chemistry
Combustibility
 Ability to rust
 Ability to tarnish
 Flammability
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DENSITY
Intensive physical property
 Quantity of matter in a given volume
 Density=mass/volume
 D=m/v
 The density of a solid or liquid is expressed in
grams/milliliter (g/ml)
 The density of a gas is expressed in grams/liter
(g/l)
 Changes in temperature and pressure will affect
the density of a gas more than a liquid , more
than a solid. (gas laws)
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WHAT IS THE DENSITY OF 12.00 ML OF
SULFURIC ACID WITH A MASS OF 22.08 GRAMS?
Solution:
 D=m/v
 D= 22.08 g/12.00 ml
 D= 1.840 g/ml
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A SAMPLE OF MARBLE HAS A MASS OF 41.2 .
IT’S DENSITY IS 2.56 GRAMS/CUBIC
CENTIMETER. WHAT IS THE VOLUME?
Solution:
 D=m/v
 2.56 g/cc=41.2g/V
 V= 41.2/2.56
 V= 16.1 ml
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CHARCOAL HAS A DENSITY OF 0.40 GRAMS/ CUBIC
CENTIMETER. CALCULATE THE MASS OF THE SAMPLE
WITH A VOLUME OF 212.8 CUBIC CENTIMETERS.
Solution:
 D=m/v
 M=D x V
 M= .40 g/cc x 212.8 cc
 M= 85 grams
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SPECIFIC GRAVITY
The ratio of density of a substance to that of a
standard (usually water)
 Specific gravity= D substance (g/ml)/D water
(g/ml)
 Specific gravity= Number (no units)
 D sample > D water (1 g/ml) the sample sinks
D sample < D water (1 g/ml) he sample floats
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IN A COOLER WHICH CANS WOULD YOU FIND ON
TOP –DIET COKE OR REGULAR COKE?