Phenol red indicator changes from yellow to red in the pH range from 6.6 to 8.0.State what color the indicator will assume in the following solution: 0.10 M HC₂H₃O₂(aq). A)red B)yellow C)red-yellow mixture D)The indicator is its original color. E)There is not enough information to answer this question.

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Quizplus · Accepted Answer

We cannot determine the pH of the solution based on the given information, so we cannot use the pH range of the indicator. However, phenol red indicator changes from yellow to red in the pH range from 6.6 to 8.0, which indicates that it is yellow at a lower pH and red at a higher pH. The formula given does not contain any hydroxide ions, so the solution is acidic. Therefore, the indicator will assume its original color which is yellow.

Phenol Red Indicator Changes from Yellow to Red in the PH