1. WATER And Solution Formation
Ch. 15
WATER
And
Solution Formation

2. Water is unique (video)
Polar Molecular Compound (shape=bent)
IMF = Hydrogen “bonds” = VERY STRONG
Causes :
High boiling point
Low vapor pressure
High surface tension
Surfactant: disrupts H-bond

3. Solid Water (ICE) Unique structure due to H-bond
Ice floats bc of structure (video)
Less dense than liquid
Open hexagon structure
or honeycombed shape

4. Solutions Solvent: Dissolving medium (does the dissolving)
Solute: the dissolved particles (gets dissolved)
Solvation: the dissolving process
“like dissolves like”
Water is called the UNIVERSAL SOLVENT

5. Solubility “Rules”

6. Electrolytes Electrolyte: conducts electricity when dissolved in water
All ionic compounds are electrolytes
Dissociate into ions.

7. Nonelectrolytes Nonelectrolyte: doesn’t conduct electricity
Most molecular compounds
Especially carbon based (organic) compounds

8. Hydrates Hydrate: water containing compound.
Example: copper II sulfate pentahydrate

9. Deliquescent Compounds
Deliquescent Compound: absorb water from the air.
Silica packets
NaOH