how many moles in o2
Everyone here has done a similar mistake, 1 molecule of O2 does weigh 32 u or Dalton, but not 32 gram. However one mole of O2 weighs 32g. Weight of one mole of O2 is weight of 2 x 6.023x10^23 x atomic weight of O [x 1 x 10^(-3) (kg/mol)]. The last term in square brackets reduces to one if you are interested in weighing in grams. Tawseef Â· 3 months ago. Thumbs up.