Example

Imagine if we have h20 , Hydrogen + Hydrogen + ( Oxygen ) = H20 , now if we want to calculate the amu of them to make a ratio , here is how it is done :

• Hydrogen + Hydrogen ( AMU - Atomic mass unit ) - 2 , Hydrogen only have one proton thus 2 hydrogen provide a amu of 2

• Oxygen ( AMU - Atomic ma unit ) - 16 , Oxygen have 8 protons and 8 neutrons which gives an atomic mass of 16

• The ratio of h20 will be 16 : 2 , if we simplify this we will get 8 : 1 , this would be the ratio of any mass of a substance in any different form