pH indicators change color at their ______. The pH at which the color change happens for a particular indicator molecule depends on its:
A. pKa; Ka or Kb
B. equivalent point; concentration
C. equivalence point; Ka ork b
D. pKa concentration

Question

pH indicators change color at their ______. The pH at which the color change happens for a particular indicator molecule depends on its:
A. pKa; Ka or Kb
B. equivalent point; concentration
C. equivalence point; Ka ork b
D. pKa concentration

aaronq · Answer

Watch this vid https://www.youtube.com/watch?v=jBfXAKuaw-c

fifib · Answer

@aaronq  thanks

aaronq · Answer

no problem (:

fifib · Answer

@aaronq According to the video , what I'm understanding is  it depends on it's pKa

aaronq · Answer

yeah, but do you understand why? what happens at a pH below the pKa, what happens at a pH above the pKa?

fifib · Answer

This topic is something I have not come across before so I wish there was a simpler explanation 
@aaronq