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copper sulfate or milk


									Pure Substance or
Separating Solutions
Saturation and Changing
Hodge Podge
Pure or   Solutions   Separating   and          Hodge
Mixture               Solutions    Changing     Podge

$10       $10         $10          $10          $10     $10
0         0           0            0            0       0
$20       $20         $20          $20          $20     $20
0         0           0            0            0       0
$30       $30         $30          $30          $30     $30
0         0           0            0            0       0
$40       $40         $40          $40          $40     $40
Which of the following is a pure
substance: sodium chloride or
Sodium Chloride
 Which of the following is a pure
substance: copper sulfate solution,
      or copper carbonate?
Copper Carbonate
 Which of the following is a pure
substance: copper sulfate or milk?
Copper Sulfate
    Tell how you can examine a
substance to determine if it is pure
              or not.
Add water and filter it
Water is an example of this part
         of a solution.
Water is a solvent.
If you make a solution with orange
  crystals and water, the orange
crystals are WHAT in the solution?
The orange crystal is the solute.
If you mix 5 g of salt in 20 mL of
water, what will the MASS of the
          solution be?
The mass will be 25 g (20 mL of
        water = 20 g)
How does a solution compare to a
A solution is a type of mixture - it
      is REALLY well mixed
When you pour a solution through a
 filter, what passes through the
Filtrate (the entire solution goes
  When you pour a mixture with
 soluble and insoluble substances
into a filter, what DOES NOT get
The INSOLUBLE substance
What is the substance that gets
trapped on filter paper called?
How can you get the solute out of a
How can you tell if a solution is
You can see grains of solute in the
  If you start with copper sulfate
 and container that have a mass of
29.8 g, add copper sulfate to water
 until it is saturated, and find the
new mass of the copper sulfate and
  container to be 22.1 g, how much
     copper sulfate was added?
7.7 g of copper sulfate
When salt is added to ice, what
 happens to the melting and
   freezing point of ice?
 The melting point and freezing
point (which are the same things)
       of the ice goes down.
  What would you expect the
temperature of boiling salt water
   to be: 98ºC, 100ºC, 102ºC?
102ºC (adding salt raises the
        boiling point)
When salt water is boiling, which
  of the following is happening:
 Water is evaporating, Water is
dissolving, Water is disappearing,
       or Water is drying?
Water is evaporating
Look at the chromatogram. Which
of the solutions was not soluble in
#3 - it doesn’t spread, so it isn’t
Which of the solutions in the
chromatogram have the same
      solute in them?
2 and 4 are the only ones you can
tell just by looking (their bottom
          solutes line up).
 Describe what happened in a test
 tube where big red crystals were
  mixed with water and the result
was a red, transparent liquid with a
   few red grains on the bottom.
 The red crystals DISSOLVED in
  the water (it was a solute, the
water was a solvent). The solution
 became saturated so the last red
grains didn’t dissolve. The crystals
    are more dense than water!
What is one thing that ALLOYS all
         have in common?
 They are mixtures with at least
one of the substances being metal.
Would a solution be considered
heterogeneous or homogeneous?
Homogeneous (really well mixed,
     same throughout!)
 The picture that shows up on a
piece of chromatography paper is
   The substance that moves the
farthest on paper chromatography
is the one that has what property?
It is the most soluble.
What is an example of an alloy?
Steel, brass, etc
  Final Jeopardy Question:

Describe what happens when
 you add water to a stain of
 marker. Use SCIENTIFIC
Water is a solvent, and marker is
a solute that can be dissolved by
And the winner is…..

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