Interactive Chemistry Worksheets for Students


Periodic table

Naming compounds

Basic formula

Simple compounds

Ionic compounds 1

Ionic compounds 2

Chemical suffixes

Old chemical names

Hydrocarbons - Alkanes

Alkanes, alkenes & alkynes

Alkanols to alkanoic acids


Common compounds

Common formula quiz

Acids, bases and salts

Covalent compounds

Printable worksheets


Caffeine is a stimulant and is naturally found in coffee beans and tea. The molecular formula for caffeine is C8H10N4O2 and its molar mass is 194.19 g·mol−1

The chemical formula for caffeine is best represented by its structural formula which can be seen below



The structural formula of caffeine

A 3D rotating molecule of caffeine


In its pure form caffeine forms a white powder with needle like crystals which has no odor.