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!

Question about chromate-dichromate equilibrium?

  1. May 6, 2009 #1
    Ok so when i add HCl to a chromate solution, it turns orange (dichromate) because the equilibrium shifts to the right, inorder to reduce the excess hydrogen ions from the HCl Acid.

    But when I add HCl to dichromate, the color changes the same. How do i explain this phenomenon.

    and is this the right equation?

    2[CrO4]-2 + [H]+ <---> [Cr2O7]-2 + H2O
  2. jcsd
  3. May 7, 2009 #2


    User Avatar

    Staff: Mentor

    Equation is OK.

    Take a look at it - what would you expect if you dissolve dichromate in pure water?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Question about chromate-dichromate equilibrium?
  1. Equilibrium question! (Replies: 1)