No. of atoms in 16 g of oxygen.

If 32 g of sulphur has x atoms, then the number of atoms in 32 g of oxygen will be :

The number of atoms present in 16 g of oxygen is:

Calculate (a) mass of 1.5 gram atoms of calcium (at. mass = 40) (b) gram atoms in 12.8 g of oxygen (at. mass = 16)

The number of molecules in 16 g of oxygen gas is ____________

Total number of atoms in 4g of oxygen molecules is