Bromophenol blue changes from yellow to blue over pH of 3.0 to 4.6. Which statement is correct?
answer choices
Molecules of bromophenol blue, HIn, are blue.
pH < 3.0, bromophenol blue contain more ion, Inâ, than HIn.
pKa of bromophenol blue is between 3.0 and 4.6.
Bromophenol blue is suitable to titrate CH3COOH with KOH.
