Page 18 - E-LKM ACID BASE

Lembar Kerja Mahasiswa - Asam Basa

- -
CO + OH HCO 3(aq)
(aq)
2(aq)

Lewis acid–base theory represents the movement of electrons in this
reaction as follows.

The donation of an electron pair from the oxygen of the OH ion
-
_
produces a bond, so the OH ion is the Lewis base. The carbon atom
of the CO accepts the electron pair, so CO is the Lewis acid.
2
2
(Jespersen, 2010)

4. The Solvents System

Consider any solvent which undergoes self-ionization:

Acids are substances that increase the concentration of the
positive ions characteristic of the solvent, and bases are
substances which increase the concentration of the negative

ions characteristic of the solvent. thus in water, substances
providing protons are acids, and substances poviding hydroxyl

ions are bases. similarly in liquid ammonia, ammonium salts are
+
acids since they provide NH ions, and sodamide NaNH is a
2
4
+
base since it provides NH ions. In N O as solvent, NOCl is an
2 4
2
acid and NaNO is a base. Clearly this definition applies equally
3
well to proton and non-proton systems.

Bahasa Inggris Kimia (PKIM3139) 14