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

question 27

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 = 1.0 atm and [Zn²⁺] = 1.0 M,the cell potential is 0.53 V.The concentration of H⁺ in the cathode compartment is ________ M.

• A) 1.3 × 10^-4
• B) 1.7 × 10^-8
• C) 1.1 × 10^-2
• D) 7.7 × 10³
• E) 1.3 × 10^-11

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Definitions:

Equity Account

An account that represents the ownership interest of shareholders in a corporation, reflected in common and preferred shares.

Fixed Costs

Expenses that do not change with the level of production or sales activities, within a relevant period.

Variable Cost

Costs that vary in total in direct proportion to changes in the level of activity or volume of production.

Operating Leverage

The degree to which a firm or project can increase operating income by increasing revenue, reflecting the proportion of fixed costs to variable costs.