The Standard Emf for the Cell Using the Overall Cell

question 149

Multiple Choice

The standard emf for the cell using the overall cell reaction below is +0.48 V: Zn(s) + Ni²⁺(aq) → Zn²⁺(aq) + Ni(s)
The emf generated by the cell when [Ni²⁺] = 2.50 M and [Zn²⁺] = 0.100 M is

• A) 0.40
• B) 0.50
• C) 0.52
• D) 0.56
• E) 0.44

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Definitions:

Hypnosis

A trance-like state of focused attention, reduced peripheral awareness, and increased responsiveness to suggestion, often used for therapeutic purposes.

Topographic Model

Freud’s original model of personality structure, in which personality is divided into three different levels of awareness.

Preconscious

In Freud’s topographic model, the part of personality that contains thoughts that can be brought into awareness with little difficulty.

Ego

In psychoanalytic theory, the part of the personality that mediates between the desires of the id, the norms of the superego, and the realities of the external world.