Question

example of moleclar mass

Answer 1

molecular mass is the mass of an molecule i.e containing atleast 2 or more than two atoms.
for example let KMnO4 is a molecule and uts molecular mass =atomic mass of (potassium+manganese+oxygen)
atomic mass of potassium=39amu
atomic mass of manganese is 54 amu
atomic mass of oxygen is 16 amu
hence molecular mass=(16×4)+39+54=64+39+54=157 amu