Question

find the number of particles of following 16 gram of oxygen molecules

Answer 1

6.022*10^23 is the particles in 16 gram of oxygen

Answer 2

Therefore, 0.5 mole of oxygen molecule, there are 0.5 * 2 mole of atom of oxygen that is 1 mole of oxygen atom. Number of particle in one mole = 6.022 * 10^233. Thus number of atom in 16 g of oxygen gas = 6.022*10^23.