A 0240 M Solution of the Salt NaA Has PH =

question 50

Multiple Choice

A 0.240 M solution of the salt NaA has pH = 8.40. Calculate K_a for the acid HA.

• A) 2.63  10^-11
• B) 3.80  10^-4
• C) 1.05  10^-5
• D) 6.60  10^-17
• E) none of these

---

Definitions:

Catastrophizing

A cognitive distortion where an individual imagines the worst possible outcome of a situation, often leading to increased anxiety and stress.

Aversive Conditioning

A method of behavior modification that involves using unpleasant stimuli to discourage undesirable behaviors.

Transference

In psychoanalysis, the redirection of feelings and desires, especially those unconsciously retained from childhood, onto a new object or person, typically a therapist.

Cognitive Therapies

A category of psychotherapeutic treatment that helps patients understand the thoughts and feelings that influence behaviors.