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Lesson: Electrochemical Measurements

In this lesson, we will learn how to describe electrochemical procedures such as electroplating, coulometry, and cyclic voltammetry.

Worksheet • 7 Questions

Q1:

What name is given to the potential that develops at the interface of two solutions due to differences in concentration and ionic mobility?

  • AJunction
  • BReference
  • COsmotic
  • DCoulombic
  • EBridging

Q2:

Which of the following is a static electrochemical technique?

  • APotentiometry
  • BAmperometry
  • CControlled-current coulometry
  • DCyclic voltammetry
  • EControlled-potential coulometry

Q3:

Fill in the blank. Coulometric techniques result in a plot of .

  • ACurrent versus time
  • BPotential only
  • CElectrochemical potential versus time
  • DCurrent only
  • ECurrent versus electrochemical potential

Q4:

Which term best describes a silver wire that is used to measure the concentration of bromide ions in an aqueous solution?

  • AMetallic electrode of the second kind
  • BReference electrode
  • CSaturated calomel electrode
  • DSilver/silver chloride electrode
  • EMetallic electrode of the first kind

Q5:

Which of the following statements about the standard hydrogen electrode, the calomel electrode, and the silver/silver chloride electrode is true?

  • AThese electrodes are typically used as reference electrodes.
  • B These electrodes have the same electrochemical potential.
  • CThese electrodes combine to make a complete electrochemical cell.
  • DThese electrodes are examples of membrane electrodes.
  • EThese electrodes are typically used as working (indicator) electrodes.

Q6:

One electrochemical technique involves first depositing an analyte on the surface of an electrode, then using an applied current to remove the analyte via a reduction or oxidation reaction. What is this method called?

  • AStripping voltammetry
  • BCyclic voltammetry
  • CHydrodynamic voltammetry
  • DPolarography
  • EAmperometry

Q7:

Cd wire used to measure the concentration of cadmium ions is an example of a .

  • Ametallic electrode of the first kind
  • Bsilver/silver chloride electrode
  • Cmetallic electrode of the second kind
  • Dreference electrode
  • Esaturated calomel electrode
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