A new indicator was found, at pH values less than 7.5 the indicator is blue and at values greater than 9.5 it is grey. What is the approximate pKa for this indicator?
The change in colour first appears at pH = 7.5 . It means if will first go transformation in its structure at 7.5 pH . Transformation can be anything like protonation deprotonation of certain groups in ... See the full answer