Download what are solutions?

WHAT ARE SOLUTIONS?
How are they useful in our everyday
lives?
CLASSIFYING MATTER
WHAT ARE PROPERTIES OF
SOLUTIONS?
 SOLUTE: The substance that is dissolved (salt)
 SOLVENT: The substance that does the
dissolving (water)
 Types of Solutions:
 Solid Solutions: containing two or more
metals such as alloys)
 Gaseous Solutions: Mixing of any gases such
as air
 Liquid Solutions: Solvent and solute are both
liquid such as vinegar dissolved in water
 Aqueous Solutions: Solutions with water as
the solvent
“Like Dissolves Like”
 Polar compounds such
as water can dissolve
other polar compounds
and ionic solids
 Nonpolar compounds
such as oils dissolve
other nonpolar
compounds
 Alcohols can dissolve
both polar and nonpolar
compounds but not ionic
solids
How Do We Determine
Concentration?
 Molarity
 Molality
HOW DO SOLUTIONS FORM?
 The formation of a solution such as NaCl involves the
breaking of attraction among solute particles,
 The breaking of attractions among solvent particles,
 And the formation of attractions between solute and
solvent particles
What is Saturation?
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A solution is saturated if it contains as much solute as can
possibly be dissolved under the existing conditions of
temperature and pressure
Unsaturated: Has less than maximum amount of solute that
can be dissolved
Supersaturated: Contains more than maximum (How can this
happen?)
What are Colligative Properties?