For all students learning O Levels Chemistry (and other equivalents), it is important that you understand the difference between the 3 types of formula commonly used – namely Molecular Formula, Empirical Formula and Structural Formula.
Previously, we have discussed on this topic before. You can find them HERE.
Let’s define them now, for better understanding and application:
Molecular Formula
– shows the exact number of atoms of each element in a molecule
Empirical Formula
– shows the types of elements (as well as the simplest ration of different types of atoms) in the compound
– commonly known as the Simplest Formula
Structural Formula
– shows the covalent bonds involved (single, double or triple covalent bonds) between each atom in the compound
– more for Covalent Molecules
Let’s look at some examples to look at the difference between Molecular Formula and Empirical Formula:
[Read more…] about O Level Chemistry: Molecular & Empirical Formulae