1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Chemistry: Moles

  1. Apr 1, 2008 #1
    The questions is arranged like this:

    1.00 mol of oxygen molecules ? oxygen molecules

    I know an oxygen molecule is 02, so would it be 2 oxygen molecules?

    It's my first day learning moles, so I'm very lost about the 1.00 mol.
  2. jcsd
  3. Apr 1, 2008 #2
    A mole is equal to Avogadro's number in atoms/molecules. I don't think oxygen being diatomic plays a part in this since it's asking for the number of oxygen molecules.
  4. Apr 1, 2008 #3
    1 mol of O2 x 6.0221415 × 10^23 molecules / mol = number of oxygen molecules in a mole
  5. Apr 4, 2008 #4
    just think of "moles" as a quantifying unit

    in order of magnitude: (small to big)
    "one", "ten", "dozen", "hundred", "thousand", "million", "billion", "moles"

    1 dozen of something = 1 x 12 = 12 something
    1 moles of something = 1 x 6.022 x 10^23 = 6.022 x 10^23 something
  6. Apr 4, 2008 #5
    There would be two oxygen atoms per a diatomic oxygen molecule, but O2 by itself is a molecule, not a single atom.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Chemistry: Moles