An example of the difference is the empirical formula for glucose while its molecular formula is C H O ( number of atoms 6 : 12 : 6 ) .
Glucose is CH O ( ratio 1 : 2 : 1 ) .
An example of the difference is the empirical formula for glucose , which is CH O ( ratio 1 : 2 : 1 ) , while its molecular formula is C H O ( number of atoms 6 : 12 : 6 ) .