Which Statements About Acid-Base Equilibria Are True

question 18

Multiple Choice

Which statements about acid-base equilibria are true?
I. The pKa is the negative log₁₀ of the acid equilibrium constant.
II. A stronger acid has a pKa with a smaller value than a weaker acid.
III. The stronger the base, the smaller the pKa of its conjugate acid.
IV. The Ka = K [HA].

• A) I, III
• B) I, II
• C) I, II, III
• D) II, III, IV

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Definitions:

Generalization

The process of drawing a broad conclusion based on specific instances, applying a rule or observation to similar situations.

Partial Reinforcement

A learning condition in which only some of the organism’s responses are reinforced.

Stimulus Generalization

The psychological phenomenon where a learned response to a specific stimulus is evoked by similar stimuli, indicating a broadening of the response criterion.

VR 10 Schedule

A type of variable ratio reinforcement schedule used in behavioral psychology where a response is reinforced after an unpredictable number of responses, averaging to ten.