1. Electrolytes and Nonelectrolytes

2. Definition and properties:
ELECTROLYTES
NONELECTROLYTES
Definition and properties:
A substance that dissolves in water and conducts an electric current. (Has mobile ions)
Definition and properties:
A substance that dissolves in water and does not produce an electric current. (No mobile ions)

3. Alcohols (CxHyOH, suffic –ol) Glycerin Sugars (CxHyOz) Note:
Electrolytes
Nonelectrolytes
Examples: Acids, bases and salts
A. Strong Electrolyte: Dissociates completely into ions.
Strong acids: large ka (table K—HCl, HNO3,H2SO4,HBr &HI)
Strong Bases: large Kb (table F—soluble hydroxides)
Soluble salts: large ksp (table F-soluble salts)
B. Weak Electrolyte:
Doesn’t dissociate completely into ions
Weak acids: small ka (all the rest)
Weak bases: small kb (table F-insoluble hydroxides)
Insoluble salts: small ksp (table F-insoluble salts)
Alcohols (CxHyOH, suffic –ol)
Glycerin
Sugars (CxHyOz)
Note:
Dissociate: ionic substances dissociate (break down) into ions.
Ionize: Molecular substances need water to produce ions.

4. Classify the following as nonelectrolytes, strong electrolytes or weak electrolytes:
HCl
water
NaCl (s)
NaCl (aq)
Vinegar
NaOH (s)
NaOH (aq)
Sugar (s)
Sugar (aq)
Calcium carbonate (s)
Calcium carbonate (aq)
Ethanol
Magnesium hydroxide(s)
Magnesium hydroxide (aq)

5. Nonelectrolytes
Water
Sodium hydroxide (s)
Sodium chloride (s)
Sugar (s)
Sugar (aq)
Calcium carbonate (s)
Ethanol
Magnesium hydroxide (s)
Strong Electrolytes
HCl
Sodium hydroxide (aq)
Sodium chloride (aq)
Weak Electrolytes
Vinegar
Calcium carbonate (aq)
Magnesium hydroxide (aq)