Write the Overall Chemical Reaction and Calculate E° for the Following

question 18

Multiple Choice

Write the overall chemical reaction and calculate E° for the following reduction and oxidation half-reactions.
2H⁺(aq) + 2e? ? H₂(g) ${E}_{\text {red }}^{0}$ = 0.000 V
Zn(s) ? Zn²⁺(aq) + 2e? $E_{o x}^{\circ}$ = +0.762 V

• A) Zn²⁺(aq)+ H₂(g)? Zn(s)+ 2H⁺(aq)E° = +0.381 V
• B) Zn²⁺(aq)+ H₂(g)? Zn(s)+ 2H⁺(aq)E° = ?0.762 V
• C) Zn(s)+ 2H⁺(aq)? Zn²⁺(aq)+ H₂(g)E° = +0.762 V
• D) Zn(s)+ 2H⁺(aq)? Zn²⁺(aq)+ H₂(g)E° = ?0.762 V
• E) Zn(s)+ 2H⁺(aq)? Zn²⁺(aq)+ H₂(g)E° = ?0.381 V

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Definitions:

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The body's automatic process to maintain a stable internal environment in response to external changes.

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The most favorable or efficient level or state for a certain function or condition to occur.

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A factor, often a reward or punishment, that motivates an individual to perform an action or behave in a specific manner.