Page 3 - Asam Basa

Acid-Base Theory

Arrhenius Theory

Arrhenius put forward a theory in his
dissertation that ionic compounds would
dissociate in solution into their constituent ions.

Acids : substances / compounds that can
+
release hydrogen ion (H ) in water.

+ -
(aq)
(aq)
HA H + A (aq)
Gambar 1.
Svante Arrhenius
Monoprotic Acid
+
Monoprotic acid is acids that produce only an ion (H ). Its
ionizatiton can be represented by the following equation. Examples:

HCl, HBr, HI, CH COOH, HNO , etc.
3
3
Polyprotic Acid

Polyprotic acid is acids which may give more than one hydrogen
+
ions (H ). For example, carbonic acid, H CO , the diprotic acid formed
3
2
when gaseous carbon dioxide is dissolved in water, undergoes the
following ionization reactions. More examples: H SO , H S, H PO , etc.
4
2
3
2
4

-
Bases: substances / compounds that can release hydroxide ions (OH )
in water

+ -
(aq)
BOH B + OH (aq)
(aq)