A 200-ML Sample of 0

question 47

Multiple Choice

A 20.0-mL sample of 0.50 M H₂C₆H₆O₆ (ascorbic acid, a diprotic acid) was titrated with 0.50 M NaOH. The following data were gathered during the titration. What is K_a2 for ascorbic acid?

• A)6.8 × 10 ⁻⁵
• B)6.2 × 10 ⁻⁶
• C)6.2 × 10 ⁻⁷
• D)6.2 × 10 ⁻⁸
• E)2.8 × 10 ⁻¹²

---

Definitions:

Type A Personality

A personality type characterized by high levels of competitiveness, self-drive, impatience, and a constant sense of urgency.

Optimism

An inclination to maintain a hopeful and positive attitude towards the future or the successful outcome of an event.

Rumination

The act of continuously thinking about the same thoughts, often negative, which can impede problem-solving and emotional recovery.

Micro-Management

Micro-Management is a management style where a leader closely observes or controls the work of their subordinates, often to a degree that is considered excessive or counterproductive.