Examlex

Solved

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. A 20.0-mL sample of 0.50 M H<sub>2</sub>C<sub>6</sub>H<sub>6</sub>O<sub>6 </sub>(ascorbic acid, a diprotic acid)  was titrated with 0.50 M NaOH. The following data were gathered during the titration.   What is K<sub>a2</sub> for ascorbic acid? A) 6.8 × 10 <sup>−</sup><sup>5</sup> B) 6.2 × 10 <sup>−</sup><sup>6</sup> C) 6.2 × 10 <sup>−</sup><sup>7</sup> D) 6.2 × 10 <sup>−</sup><sup>8</sup> E) 2.8 × 10 <sup>−</sup><sup>12</sup> What is Ka2 for ascorbic acid?


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.

Related Questions