Barium Is a Nonessential Element in the Human Body, but Some

question 26

Multiple Choice

Barium is a nonessential element in the human body, but some organisms build exoskeletons using barium sulfate, which has a K_sp of 1.1  10^10 at 25C. What is the mass of barium in 1.0 L of a saturated solution of barium sulfate at 25C?

• A)4.1  g
• B)1.4 mg
• C)3.7 mg
• D)7.3  g
• E)15 ng

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Definitions:

Implicit Association Tests

Psychological assessments that measure the strength of associations between concepts (e.g., black or white, young or old) and evaluations (e.g., good or bad).

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Functionalist psychologists focus on how mental processes and behaviors help individuals adapt to their environments, emphasizing the purpose of psychological phenomena.

Individual Parts

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A branch of psychology that studies the relationship between behavior and the physical processes of the brain and other parts of the nervous system.