The Standard Cell Potential (E°)of a Voltaic Cell Constructed Using

question 103

Multiple Choice

The standard cell potential (E°) of a voltaic cell constructed using the cell reaction below is 0.76 V: Zn (s) + 2H⁺ (aq) → Zn²⁺ (aq) + H₂ (g)
With PH₂ = 1.0 atm and [Zn²⁺] = 1.0 M, the cell potential is 0.66 V. The concentration of H⁺ in the cathode compartment is __________ M.

• A)2.0 × 10^-2
• B)4.2 × 10^-4
• C)1.4 × 10^-1
• D)4.9 × 10¹
• E)1.0 × 10^-12

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Definitions:

Unconditioned Responses

Automatic, reflexive reactions to specific stimuli that are not learned, such as jerking your hand away from a hot surface.

UCS Cortical Center

A hypothetical or proposed brain area responsible for processing unconditioned stimuli, which automatically trigger reflexive responses.

Unconditioned Response

A natural, unlearned reaction to an unconditioned stimulus, such as salivating when tasting food.

Analgesia

The inability to feel pain while still conscious, often induced through use of medication or psychological techniques.