What Is the Standard Cell Potential for a Voltaic Cell

question 161

Multiple Choice

What is the standard cell potential for a voltaic cell using the Pb²⁺/Pb and Mg²⁺/Mg half-reactions? Which metal is the cathode?

• A)"-2.25 V,Pb is the cathode"
• B)"+2.25 V,Mg is the cathode"
• C)"-2.25 V,Mg is the cathode"
• D)"+2.25 V,Pb is the cathode"
• E)"-2.49 V,Mg is the cathode"

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Definitions:

Sodium

A chemical element (Na) that is a soft, silver-white, highly reactive metal belonging to the alkali metal group, essential for humans and animals in small amounts.

Acid-Base Balance

The mechanism by which the body maintains its normal pH level, ensuring optimal functioning of cells and organs.

Fluid Balance

The maintenance of the correct amount of fluid in the body, crucial for ensuring that all cells and organs function effectively.

Clear-Liquid Diet

A diet consisting only of clear liquids like water, broth, and certain juices, often recommended before medical tests or surgery.