Consider the Voltaic Cell Based on the Following Reaction: Zn(s) $\to$

question 19

Multiple Choice

Consider the voltaic cell based on the following reaction: Zn(s) + Ni²⁺(aq) $\to$ Zn²⁺(aq) + Ni(s)
Two students are assigned to measure the standard cell potential at 25°C.Student one claims that both solutions of ions have to be at exactly 1.00 M concentration,but student two is sure that the measurement will be the same if the concentrations of the two solutions are equal,but not necessarily 1.00 M.What do you think?

• A)Student one is right because,by definition,standard cell potentials must be measured at concentrations of 1.00 M.
• B)Student one is right because she understands the Nernst equation and what it describes.
• C)Student two is right because she understands the Nernst equation and what it describes.
• D)Student two is right because cell potentials do not depend on the concentration.
• E)Both are right because cell potentials do not depend on the concentration.

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Definitions:

Dissonance Situation

A psychological state where an individual experiences discomfort or conflict due to holding two or more contradictory beliefs, ideas, or values at the same time.

Potential Dissonance

The possible tension or conflict that arises when a person holds two contradictory beliefs or attitudes simultaneously.

Low-ball Technique

A persuasion strategy where an initially favorable offer is made to get an agreement, and then terms are made less favorable to the agreement party.

Postdecisional Dissonance

The discomfort experienced after making a difficult choice, often involving feelings of regret or uncertainty.