What is the atomic mass of an element? Atomic massAtoms are extremely small; the heaviest atoms have masses of about 10–22 g. Even an ultramicrobalance cannot measure the mass of a single atom. However, relative masses of atoms of different elements can be determined. At first, the mass of the lightest atom, hydrogen. The SI unit for mass is kilogram (kg). The mass … [Read more...] about What is the atomic mass of an element?
Atomic Mass
What is Molecular Mass
What is Molecular Mass Molecular mass/Formula mass Molecular mass expresses as to how many times a molecule of a substance is heavier than th of the mass of an atom of carbon (carbon-12). Thus, Molecular mass = Molecular mass = 2 × vapour density Example: A molecule of water is 18 times heavier than th of the mass of carbon atom. Therefore, the molecular mass of water is … [Read more...] about What is Molecular Mass