A community for students.

Here's the question you clicked on:

← 55 members online
  • 0 replying
  • 0 viewing

vera_ewing

  • one year ago

Chem question

  • This Question is Closed
  1. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Hey what is the answer u got ?

  2. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    how did u find that! Tell me how u did it?

  3. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Wait, is the reaction at equilibrium?

  4. sweetburger
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Basically you are solving for Q and then your answer revolves around what answer you get for Q.

  5. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

  6. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I got 4.3 x 10^-2, though...

  7. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[N _{2}O _{4} => 2NO _{2}\]

  8. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    So first write and equation for Kc.

  9. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    http://www.800mainstreet.com/7/0007-007-Equi_exp_k.html see this and see the section: "What does an equilibrium constant tell"

  10. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Okay, and then what?

  11. sweetburger
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Well the Kc given here states that the reactants are far more favored as it is far less than 1.

  12. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[K _{c} =\frac{ [NO _{2}]^{2} }{ [N _{2} O _{4}]}\]

  13. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yeah don't you get 4.3 x 10^-2 when you do it that way?

  14. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    since they have given us some concentrations calculate Kc for the given concentrations!

  15. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    4.3 x 10^-2 does not equal Kc therefore you can conclude that the reaction is not at equilibrium

  16. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I get 4.5 x 10^-2

  17. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    How? Can you show me your work?

  18. sweetburger
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Alright lets just set it up what it would look like to solve for Q in this situation. [.15]^2/[.5]= .045 which is 4.5x10^-2 is what i got

  19. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ohhh I see. I messed up.

  20. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks so much.

  21. sweetburger
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    which is in fact larger than the given Kc so what would have to happen to reach equilibrium?

  22. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Check out that page I linked

  23. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[Kc = 0.15^{2}/ 0.5\]

  24. Rushwr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    So it's gonna be D !

  25. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and the image I posted

  26. sweetburger
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes I agree it should be D.

  27. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 β†’ View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • βœ” You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.