Calculate the Concentration of Chromate Ion (CrO₄^2-) in a 0

question 82

Multiple Choice

Calculate the concentration of chromate ion (CrO₄^2-) in a 0.450 M solution of chromic acid (H₂CrO₄) . [For chromic acid, K_a1 = 0.18, K_a2 = 3.2 * 10^-7.]

• A) 3.2 * 10^-7 M
• B) 1.5 * 10^-6 M
• C) 0.081 M
• D) 1.1 * 10^-6 M
• E) 0.21 M

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Definitions:

Free Association

A psychoanalytic technique in which a patient says whatever comes to mind without censorship, used to explore unconscious thoughts and feelings.

Uncensored Reporting

The practice of reporting events or stories without withholding any details, regardless of potential controversy or sensitivity.

Anxiety-Arousing Stimuli

External factors or situations that trigger feelings of fear, worry, or nervousness.

Freud

Sigmund Freud, a neurologist and the founder of psychoanalysis, which emphasizes unconscious psychological processes.