PH is an indicator of how acidic or basic a substance is. The pH scale ranges from 0 - 14, with 7 representing neutral. Acids have a pH below 7; bases, a pH greater than 7. Scientists determine the pH of a substance by using an indicator; indicators change color depending on the pH of a substance. Different indicators work at different pH ranges, as seen in the table above. The transition range of an indicator is the range of pH when the indicator changes from its low-pH color to its high-pH color. If the indicator shows a color between the two, then the pH lies somewhere in that transition range. You have been given a liquid that turns pink in phenolphthalein and blue in thymolphthalein. Tests with methyl violet and bromophenol blue resulted in a violet color. Based on your test results, determine which statements regarding the liquid are accurate. Choose ALL that apply. A. The liquid is a base.
B. The liquid is an acid.
C. The liquid has a pH > than 7.
D. The liquid is an H⁺ donor.
E. The liquid mostly likely contains OH⁻.