A Solution Contains [Ba²⁺] = 5

question 33

Multiple Choice

A solution contains [Ba²⁺] = 5.0 × 10^-5 M, [Ag⁺] = 3.0 × 10^-5 M, and [Zn²⁺] = 2.0 × 10^-7 M. Sodium oxalate is slowly added so that [C₂O₄^2-] increases.
What is the concentration of the first cation to precipitate when the second cation just begins to precipitate?

• A) 1.3 × 10^-6
• B) 2.2 × 10^-6
• C) 5.0 × 10^-5
• D) 1.35 × 10^-9
• E) 1.1 × 10^-11

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Definitions:

Models of Abnormality

Theories and frameworks used to understand the causes, symptoms, and treatments of psychological disorders, including biological, psychological, and sociocultural models.

Laboratory Testing

The analysis of blood, urine, or other body fluids or tissues in a controlled environment to diagnose, prevent, or treat diseases.

Psychodynamic

An approach in psychology that emphasizes systematic study of the psychological forces that underlie human behavior, feelings, and emotions and how they might relate to early experiences.

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Relating to cognitive-behavioral therapy (CBT), a type of psychotherapy that involves modifying dysfunctional emotions, behaviors, and thoughts through a goal-oriented, systematic approach.