Vitamin C Is a Monoprotic Weak Acid, Which Is Also

question 18

Multiple Choice

Vitamin C is a monoprotic weak acid, which is also called ascorbic acid (C₆H₈O₅, 176.12 g/mol) .A vitamin C tablet weighing 0.75 g was dissolved in 50.0 mL of water and titrated with 0.250 M sodium hydroxide.It took 12.5 mL of the NaOH solution to reach the endpoint.What is the percentage of vitamin C in the tablet? Only the vitamin C reacted with the NaOH.

• A)98.7%
• B)64.2%
• C)87.7%
• D)95.5%
• E)73.3%

---

Definitions:

Colonnade

A series or row of columns, usually spanned by lintels.

Persepolis

An ancient city in Persia, renowned for its monumental architecture and cultural significance, serving as a ceremonial capital of the Achaemenid Empire.

Protome Capitals

Capitals featuring the head of a human or animal projecting from the sides, common in ancient architecture, particularly Etruscan and Greek.

Persepolis

An ancient city in Persia, now Iran, known for its architectural grandeur and ornate reliefs, serving as a ceremonial capital of the Achaemenid Empire in the 6th century BCE.