Determine E°_cell for the Reaction: Pb²⁺(aq)+ Zn(s)→ Pb(s)+ Zn²⁺(aq)

question 87

Multiple Choice

Determine E°_cell for the reaction: Pb²⁺(aq) + Zn(s) → Pb(s) + Zn²⁺(aq) .The half reactions are:
Pb²⁺(aq) + 2 e^- → Pb(s) E° = -0.125 V
Zn²+(aq) + 2 e^- → Zn(s) E° = -0.763 V

• A)0.638 V
• B)-0.638 V
• C)0.888 V
• D)-1.276 V
• E)-0.888 V

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Definitions:

Dependent Variable

In an experiment, the variable that is being measured and tested, and is expected to change when the independent variable is altered.

Laboratory Setting

An environment controlled by researchers to conduct experiments or observations under standardized conditions.

Independent Variable

The independent variable is the variable that is manipulated or changed in an experiment to test its effect on the dependent variable.

Functional Relationship

A relationship in which changes in one variable are associated with changes in another variable, typically indicating a causal link.