Transcript IPS Chapter 4 - Christian Brothers High School

IPS Chapter 4
Solubility
Definitions
Mixture
 A physical combination of elements and/or
compounds.
 Components keep their identity

Definitions
– Homogeneous- Consistent composition
within the sample (Solution)
 Coke, Gatorade, air
– Heterogeneous- Different composition
within same sample
 Blood, pizza, rocks
Parts of a Solution

Solute
– Part which is dissolved- usually solid

Solvent
– Part in which solute is dissolved- usually liquid

Precipitate
– Undissolved solid
How much is dissolved?

Saturated
– No more solute can be dissolved

Unsaturated
– More can be dissolved

Supersaturated
– More solute is added than can be dissolvedPrecipitate forms
Concentration
How much solute is dissolved in a solvent
 Expressed in g/cm3
 How does this differ from density since
density uses the same unit?
 Density refers to one substance, while
concentration refers to two.
 Divide mass of solute by volume of solvent
to determine concentration

Solubility
The maximum amount of solute that can
be dissolved in a solvent.
 The concentration of a saturated solution
 Expressed in g/100cm3
 Multiply concentration by 100
 Is a Characteristic property of the solute in
that solvent.
 Dependent on temperature

Other definitions

Soluble
– Can be dissolved

Insoluble
Mixtures of gases and
liquids
 Miscible

– Can be mixed
– Cannot be dissolved

Immiscible
– Cannot be mixed