Ecco come calcolarlo:

* Carbon (C): 1 atomo * 12,01 g/mol =12,01 g/mol

* Idrogeno (H): 4 atomi * 1,01 g/mol =4,04 g/mol

Massa molare totale =12,01 g/mol + 4,04 g/mol =16,04 g/mol