Assuming standard pressure and temperature.
Gas at standard temperature and pressure is 22.414L/Mole (This is independent of the composition of the gas).
N= (14.01g/mole)
O= (16.00g/mole)
14.01+16.00 =30.01g/mole for Nitric oxide (NO). (Gram Molecular mass of NO)
18.82L/(22.41L/mole) = 0.8397mole
0.8397 mole of (NO) (Number of moles of NO)
(30.01g/mole)*(0.8397mole) =25.198g Nitric oxide (NO). (Mass of NO sample)
_7UP_