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? 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?