Potentiometry Multiple Choice Exam ng baby ko

Potentiometry is a technique used to measure:

• The concentration of a solution

• The refractive index of a substance

• The specific rotation of a compound

• The boiling point of a liquid

The potential of an electrochemical cell is directly related to:

• The temperature of the solution

• The concentration of the analyte ions

• The pressure of the system

• The volume of the solution

A reference electrode is used to:

• Measure the potential of the analyte solution

• Provide a stable reference potential

• Act as a counter electrode

• All of the above

The Nernst equation relates the potential of an electrochemical cell to:

• The concentration of the analyte ions

• The temperature

• The standard reduction potential

• All of the above

The indicator electrode in potentiometry:

• Maintains a constant potential

• Selects for a specific ion

• Acts as a counter electrode

• All of the above

A common type of reference electrode is:

• Standard hydrogen electrode

• Silver-silver chloride electrode

• Calomel electrode

• All of the above

Which of the following is not a type of potentiometric titration?

• Acid-base titration

• Redox titration

• Precipitation titration

• Gravimetric titration

The endpoint of a potentiometric titration is determined by:

• A color change

• A sudden change in potential

• The formation of a precipitate

• The appearance of a turbidity

The pH meter is a specialized type of:

• Potentiometer

• Refractometer

• Polarimeter

• Spectrophotometer

Ion-selective electrodes are used to measure:

• The concentration of specific ions

• The pH of a solution

• The redox potential

• All of the above