Universal solvent

1. 1. A difference in what physical property is often used to separate two immiscible
liquids?
A. Color
B. Density
C. Size
D. Shape
2. Fog and smoke are examples of what type of heterogeneous mixture?
A. Emulsion
B. Solution
C. Solvent
D. Colloid
3. What is another term for a homogenous mixture?
A. Milk
B. Salad
C. Solution
D. Solvent
4. What is an alloy?
A. A solid solution of two or more metals
B. A liquid solution of two or more metals
C. A mixture of hydrocarbons
D. A solution where alcohol is the solvent

2. Formic acid
and water

3. ReviewReview
•SolutionsSolutions
•Key termsKey terms
•Examples Examples

4. Speeding up the dissolving processSpeeding up the dissolving process
0
10
20
30
40
50
Time
(seconds)
Whole TabletCrumbled
Tablet
Crushed
Tablet
Affect of Solute Surface Area

5. Speeding up the dissolving processSpeeding up the dissolving process
•Increasing the Increasing the
surface area of surface area of
a solute makes a solute makes
it dissolve it dissolve
fasterfaster

6. Universal SolventUniversal Solvent
•Water will dissolve many Water will dissolve many
thingsthings
•Its called the “universal Its called the “universal
solvent”solvent”
•It will not dissolve It will not dissolve everythingeverything

7. Universal SolventUniversal Solvent
•Water will attract both the Water will attract both the
(+)’s and the (-)’s of an ionic (+)’s and the (-)’s of an ionic
compoundcompound
•Attracts the individual atoms Attracts the individual atoms

8. Like Dissolve LikeLike Dissolve Like
•Polar substances dissolve Polar substances dissolve
other polar substancesother polar substances
•Nonpolar will dissolve Nonpolar will dissolve
nonpolar nonpolar
•Nonpolar- equally shares Nonpolar- equally shares
electronselectrons

9. Like Dissolve LikeLike Dissolve Like
•Vegetable oil- nonpolarVegetable oil- nonpolar
•Will not dissolve in waterWill not dissolve in water

10. Like Dissolve LikeLike Dissolve Like
•Vegetable oil- nonpolarVegetable oil- nonpolar
•Will not dissolve in waterWill not dissolve in water