Page 16 - E-LKM ACID BASE

Lembar Kerja Mahasiswa - Asam Basa

Coal is used as fuel in the
combustion process industry by using
coal to produce exhaust gas. one of
them is sulfur dioxide gas (SO₂). SO₂

gas, this is harmful to health and
pollutes the environment because it
can cause acid rain. For this reason,
efforts are made to reduce the impact

of SO₂ gas by adding limestone
(CaCO ) to coal combustion. During
3
Figure 10. Coal
the combustion process at high Sumber: Wikipedia.com
temperatures CaCO , it decomposes nb: silahkan klik gambar untuk
3
into lime (CaO). memperbesar gambar

The concept of acids and bases according to whom is present in the
reaction? And which substances act as acids and bases?

3. Lewis Theory

According to the Lewis definition, a molecule behaves as a base
when it donates a lone pair of electrons. Conversely, a molecule
behaves as an acid when it accepts a lone pair. So while the

Brønsted–Lowry definition focuses on the action of a proton, the Lewis
definition focuses on the action of a lone pair.

Consider the following example:

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