Answer is (2) - blue.
Thymol blue is a pH indicator which 3 colors according to the pH.
Thymol blue shows red color at below pH than 1.2 and shows yellow color at the pH between 2.8 and 8.0. For the pH above 9.6, thymol blue shows blue color.
Hence, the thymol blue has 2 pH ranges as 1.2 - 2.8 and 8.0 - 9.6.
Since, pH = 11 is above the pH = 9.6, thymol blue shows blue color.
Answer:
The total pressure is 724 mmHg
Explanation:
If you want to know the total pressure of the mixture, you must sum each partial pressure.
555 mmHg + 149 mmHg + 13 mmHg + 7 mmHg = 724 mmHg
