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 NH₄NO₃(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.

Question

Quizplus · Accepted Answer

0.10 M NH₄NO₃ is a solution of a weak base (NH₄⁺) and a strong acid (NO₃⁻), which results in an acidic solution with a pH less than 7. Therefore, phenol red will be yellow in this solution.

Phenol Red Indicator Changes from Yellow to Red in the PH