Converting mols to molecules and molecules to mols PLEASE HELP!!! 3. How many moles of oxygen atoms are present in 8.42 x 1024 molecules of lithium carbonate (LiCO3) ?

4. How many moles of nitrogen are present in 5.3 moles of tin (IV) nitrate (N4O12Sn)?

5. How many molecules of tin (IV) nitrate (N4O12Sn) would contain 6.17 moles of oxygen atoms?

6. How many moles of aluminum sulfate (Al4(SO4)3 )would contain 3.54 x 1025 sulfur atoms?

7. How many rubidium atoms would be present in 9.47 moles of rubidium sulfide (Rb2S)?

8. How many carbon atoms would be present in 2.95 moles of sucrose (C12H22O11)?