1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Momentum of oxygen molecules

  1. Aug 7, 2011 #1
    What is the momentum of an oxygen molecule traveling at this speed?

    the speed was 484 m/s

    the molar mass of oxygen is M=.032 kg/mole

    Na= 6.022 x10^23
    I do p=mv


    The answer should be 2.57x10^-13 but i keep getting 2.57 x10^-23
  2. jcsd
  3. Aug 7, 2011 #2


    User Avatar
    Homework Helper

    Check your calculations again, your operations are correct.
  4. Aug 7, 2011 #3
    I still get 2.57 x 10^-23
  5. Aug 7, 2011 #4


    User Avatar
    Homework Helper

    Your result is correct.

  6. Aug 7, 2011 #5
    So the solution in the book is wrong, Thank you
    Last edited: Aug 7, 2011
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook