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:

Factor

A number or quantity that divides another number or algebraic expression evenly, without leaving a remainder.

Division

A mathematical operation representing the process of dividing one number by another to find a quotient, often shown with the symbol "/" or "÷."

Simplify

In mathematics, to reduce an expression or equation to its simplest form, making it easier to handle or understand.

Solution

A value or set of values that makes an equation true.