5.080 x 1016 molecules of hydrogen (gas) to moles

The relation of moles to molecules can be known through the Avogadro’s number. Take note that one mole of any substance is equal to 6.02 x 10^23 molecules. Thus in converting 5.080 x 10^16 molecules of hydrogen to moles, just divide it with the Avogadro’s number. The answer would be 8.44 x 19^-8 moles.