Calculate the number of nucleons in 10cm^3 fluorine gas

Answer 1

If the gas is at STP conditions and is F-19 then 10 cc is 10/22,400 = 0.000446 moles F2 or 0.000892 moles F atoms. That times 6.02E23 will give you the number of F atoms and that times 19 nucleons/F atom will give you the total number of nucleons.