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!

Bromocresol Green as an Indicator

  1. Oct 13, 2007 #1
    Give an example of a titration assay in which bromocresol green could be
    used. In your example give the concentrations of each component. Based
    on the conditions of the titration, calculate the pH at equivalence.

    Since Bromocresol Green has a pKa of 4.6, I figured that this must be a titration of a weak base and a strong acid.
    I decided to use 5.0mL of 0.1M NH3 and 10.0mL of 0.020M HCl.

    The pKb is 4.76.
    I solved for the pH and got 9.42.

    Would I be able to use this particular acid base combination?
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?