calculate the total no of atoms present in 0.8 moles of h2s? Share with your friends Share 1 Akanksha C. answered this Dear Student,Number of molecules in 1 mole of H2S =6.02 ×1023 molecules.Number of molecules in 0.8 mole of H2S =6.02 ×1023 ×0.8 =4.816×1023 molecules.Number of atoms in 1 molecule of H2S =3Number of atoms in 4.816×1023 molecule of H2S =3×4.816×1023 =1.448 ×1024 atoms 4 View Full Answer