Which Indicator Is Most Appropriate for the Titration of Acetic

question 41

Multiple Choice

Which indicator is most appropriate for the titration of acetic acid with NaOH? The K_a for CH₃CO₂H is 1.8 × 10−⁵.

• A) methyl red (pH 5)
• B) bromthymol blue (pH 7)
• C) phenolphthalein (pH 9)
• D) Both methyl red and bromthymol blue are suitable.
• E) All three indicators are suitable.

---

Definitions:

Taxes

A compulsory financial charge or some other type of levy imposed on a taxpayer by a governmental organization in order to fund government spending and various public expenditures.

French King

A monarch who ruled over France, a title held by several historical figures in France's monarchy until the French Revolution.

English Liberties

Historical rights and freedoms that originated in English law and influenced American legal traditions.

Henry Care

An English political writer and polemicist of the 17th century known for his advocacy of civil liberties and constitutional government.