Explanation:
As bromophenol works in the range in the pH range of 3.0 to 4.6 and phenolphthalein works in th epH range of approximately 7.0.
So, when bromophenol is used during titration then volume consumption of base would be less as the end point will come early due to low pH range.
It is known that molarity is the number of moles present in liter of solution.
Mathematically, Molarity = [tex]\frac{\text{no. of moles}}{\text{volume in liter}}[/tex]
= [tex]\frac{n}{\text{molecular weight}} \times \frac{1000}{\text{volume}}[/tex]
Since, volume of acetic acid used is low. Therefore, molarity of acetic acid will be high.
Thus, we can conclude that the calculated molarity of acetic acid be high.