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!

Equilibrium question

  1. Nov 2, 2005 #1
    hi

    I'm really having trouble with this question, can anyone help?

    When Ag+ ions re added to the red FeSCN2+ ions, the color disappears, and white precipitate of AgSCn forms. Explain why the Iron(III) can be used aws an indicator in a reaction to determine the concentration of an unknown solution of Ag+ by reacting it with a solution of KSCN of known concentration. (the system is at equilibrium as well)

    thanks
     
  2. jcsd
  3. Nov 2, 2005 #2

    Astronuc

    User Avatar

    Staff: Mentor

    When Ag+ ions re added to the red FeSCN2+ ions, the color disappears, and white precipitate of AgSCn forms.

    So what is the significance of this as it relates to using Fe as an indicator?
     
  4. Nov 2, 2005 #3

    GCT

    User Avatar
    Science Advisor
    Homework Helper

    it's similar to the volhard titration, you titrated the unknown sample with the known standard of KSCN with iron(III) as an indicator, when the color disappears, you've reached the end point.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Equilibrium question
  1. Equilibrium question (Replies: 1)

  2. Equilibrium question (Replies: 7)

  3. Equilibrium Question (Replies: 3)

  4. Equilibrium question! (Replies: 1)

Loading...