If one gram of sulphur contains x atoms, calculate the number of atoms in one gram of oxygen element. (Atomic masses: S = 32 u; O = 16 u)
32 g of S = 1 mole
So, 1 g of S = 1/32 mole
Now since equal moles of all the substances contain equal number of atoms so, 1/32 mole of oxygen will also contain x atoms like S.
16 g of oxygen = 1 mole
So, 1 g of oxygen = 1/16 mole
Now, 1/32 mole of oxygen contains = x atoms
So, 1/16 mole of oxygen will contain = x × 32/16 = 2x atoms.