The Following Has a Potential of 0 If the Concentrations of Each of the Ions Is 1

question 61

Multiple Choice

The following has a potential of 0.34 V. $\mathrm { Cu } ^ { 2 + } ( \mathrm { aq } ) + \mathrm { H } _ { 2 } ( \mathrm {~g} ) \rightarrow 2 \mathrm { H } ^ { + } ( \mathrm { aq } ) + \mathrm { Cu } ( \mathrm { s } )$ If the concentrations of each of the ions is 1.0 M and the pressure of H₂ is 1.0 atm, then E° for the half-reaction $\mathrm { Cu } ^ { 2 + } ( \mathrm { aq } ) + 2 e ^ { - } \rightarrow \mathrm { Cu } ( \mathrm { s } )$ is _____.

• A) 0.17 V
• B) -0.17 V
• C) 0.34 V
• D) -0.34 V
• E) None of these

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Definitions:

Proxy Variable

An alternative that is used to stand in for a variable that cannot be directly measured or is not readily available.

Anthill

A mound formed above the ground by ants as they excavate tunnels for their nests.

Proxy Variable

A variable used in place of another variable that is not directly measurable or accessible, often because of practical limitations.

Happiness

Happiness is a state of well-being and contentment characterized by emotions ranging from contentment to intense joy; it reflects subjective evaluations of life satisfaction and emotional experiences.