formelmassa
Formelmassa, also called formula mass or relative formula mass, is the sum of the standard atomic masses of all atoms in a chemical formula. It is typically expressed in atomic mass units (u) and represents the mass contribution of the formula’s constituent atoms.
To calculate the formelmassa, add the atomic masses of each element in the formula, multiplied by the
Relation to molar mass: the numerical value of the formula mass closely matches the molar mass in
Notes and caveats: the atomic masses used are often standard atomic weights, which are averages that reflect