you are viewing a single comment's thread
view the rest of the comments
[–] 5 points 3 weeks ago (2 children)

TIL one gram of hydrogen is one mole of hydrogen. Neat!

  • source
  • hideshow 2 child comments
  • [–] 5 points 3 weeks ago

    Yep. Those numbers on the periodic table tell you how many grams one mole is. I think one of them is the average isotopic valie and the other is the ideal value.

  • source
  • parent
  • [–] 3 points 2 weeks ago

    It actually isn't, it's quite close, but due to nuclear binding energy 1 mole of hydrogen is actually a little more than a gram. Because the mole is defined for C12, it is the only nuclide (atom with a specific number of protons and neutrons) where a mole is it's atomic number in grams, 12 in the case for C12

  • source
  • parent