[Chemistry Class Notes] on Ozone Formula Pdf for Exam

Ozone also called Triatomic Oxygen is a chemical compound made up of Oxygen atoms only. Ozone is present in the upper stratosphere which protects us from solar ultraviolet radiation by forming a protective shield against it. Natural and industrial activities also produce ozone in the lower atmosphere. Ozone in the lower atmosphere acts as a pollutant that can cause respiratory ailments in humans and animals. Three oxygen atoms (O₃) make up an ozone molecule, while the stable form of oxygen that usually occurs in the atmosphere has only two oxygen atoms. 

It is only in small amounts in the stratosphere of the Earth, where it absorbs solar ultraviolet radiation that would otherwise damage living organisms on the earth. Since the molecule of ozone is unstable and likely to break, it cannot be stored and must be generated in situ with an ozone generator.

Ozone Formula Structure

An ozone molecule consists of three oxygen atoms (O2).  

Properties of Ozone

Ozone is a blue coloured gas with a boiling point of -112 degrees Celsius. Ozone can partially dissolve in water at atmospheric pressure. Ozone is thirteen times more soluble than oxygen at normal pressure and temperature. Ozone is a powerful oxidizer, with an oxidation potential of 2,07 Volt, making it one of the most powerful oxidizers used for water treatment. 

Oxidizing Action

Ozone is regarded as a powerful oxidising agent. This is mostly due to the ease with which it releases nascent oxygen atoms. It leads to the oxidation of: 

4O3   +   PbS   →   4O2   +   PbSO4

2KI   +   H2O   +   O3   →   2KOH   +   I2   +   O2

2NO2  +   O3   →  N2O5   +   O2