A Cell Is Set Up with Copper and Lead Electrodes $\to$

question 17

Multiple Choice

A cell is set up with copper and lead electrodes in contact with CuSO₄(aq) and Pb(NO₃) ₂(aq) ,respectively,at 25°C.The standard reduction potentials are: Pb²⁺ + 2e^- $\to$ Pb
$\varepsilon$ ° = -0.13 V
Cu²⁺ + 2e^- $\to$ Cu
$\varepsilon$ ° = +0.34 V
If sulfuric acid is added to the Pb(NO₃) ₂ solution,forming a precipitate of PbSO₄,the cell potential:

• A)increases
• B)decreases
• C)is unchanged
• D)can't tell what will happen
• E)none of these

---

Definitions:

Probability Model

A mathematical representation of a random phenomenon, characterized by its sample space, events within the sample space, and probabilities associated with each event.

Resonance Stabilization

A phenomenon where a molecule can be represented by two or more structures that contribute to its overall stability and properties, enhancing its chemical stability.

Phenoxide Ion

The phenoxide ion is a negatively charged ion (an anion) formed when phenol loses a hydrogen ion (H+), characterized by a phenyl group (C6H5) bound to an oxygen atom carrying a negative charge.

Cyclohexanol

A secondary alcohol with the formula C6H11OH, characterized by a six-member ring structure, and used as a precursor in the production of nylon.