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)

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.

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)