Picric Acid Has Been Used in the Leather Industry and in Etching

question 72

Multiple Choice

Picric acid has been used in the leather industry and in etching copper. However, its laboratory use has been restricted because it dehydrates on standing and can become shock sensitive. It has an acid dissociation constant of 0.42. What is the [H₃O⁺] for a 0.20 M solution of picric acid?

• A) 0.022 M
• B) 0.052 M
• C) 0.15 M
• D) 0.29 M
• E) none of the above

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Definitions:

Homeostasis

The process by which living organisms regulate their internal environment to maintain a stable, constant condition in response to external changes.

Internal Environment

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Hierarchy of Motives

A structure that ranks human needs and motivations in order of importance, from basic physiological needs to self-actualization.

Maslow

Refers to Abraham Maslow, a psychologist best known for creating Maslow's hierarchy of needs, a theory of psychological health predicated on fulfilling innate human needs in priority, culminating in self-actualization.