What is the molecular formula of caffeine using the Hill method?

Question

I know the molecular formula for caffeine is C8H10N4O2 but I'm not sure how to use the Hill method or if thats the right answer

Answer 1

In the Hill system, molecular formulas are written with the elements in this order:

 

(1)  the number of carbon atoms

(2)  the number of hydrogen atoms

(3)  the number of all other chemical elements in alphabetical order of the chemical symbols.

 

If there are no carbon atoms in the molecule, all the elements, including hydrogen, are listed in alphabetical order.

 

C₈H₁₀N₄O₂ is written in the Hill system.