Recently Added Formulas in Chemistry

· Chemical Reactions
· Raoult's Law
· Cations and Anions
· Hess' Law
· pH and pOH

Additional Formulas

· Ideal Gas Law
· Henry's Law
· Hess' Law
· Raoult's Law
· Chemical Formulas
· Chemical Reactions
· Strength of Common Acids
· Strength of Common Bases
· Cations and Anions
· Molar Enthalpy

Current Location > Formulas in Chemistry > Chemistry (Basics) > Chemical Formulas

Chemical Formulas

Briefly there are three ways of expressing information about a particular chemical compound: structural formula, molecular formula and empirical formula.

Structural Formula
Structural formula is useful when we need to express information about how atoms are bound to each other.

For example:

Molecular Formula
Molecular Formula is useful when we need to show which and how many atoms a molecule is consisting of.

For example:
H2O

Empirical Formula
Empirical formula gives a simple expression of the ratio of the elements in a compound.

For example:
CH3