Question

Estimate the pH of a solution in which bromcresol green is blue and thymol blue is yellow (see Fig. 8.8).

Short answer

The pH of the solution is between 5.4-8.

Step-by-step solution

Bromocresol green and thymol blue

The yellow color of Bromocresol green is below the pH of 3.8, whereas blue is above pH 5.4. The yellow color of Thymol blue is below pH 8, whereas blue above pH 9.6.

Bromocresol green to be blue and thymol blue to be yellow

The bromocresol green for blue of pH is above pH 5.4 and thymol blue to be yellow of pH is below 8. The pH of the solution is between 5.4-8.