Podcast
Questions and Answers
What is the most common ion-selective electrode?
What is the most common ion-selective electrode?
- Combination probe (correct)
- Membrane indicators
- Hydration process
- Junction potential drift
What must be done before a glass electrode functions as a pH electrode?
What must be done before a glass electrode functions as a pH electrode?
- Acid error
- Hydration process (correct)
- Junction potential drift
- Alkaline error
What error occurs when [H+] is very low and [Na+] is high?
What error occurs when [H+] is very low and [Na+] is high?
- Junction potential drift
- Combination probe
- Hydration process
- Alkaline error (correct)
How often should the glass electrode be recalibrated to compensate for junction potential drift?
How often should the glass electrode be recalibrated to compensate for junction potential drift?
What exists at the porous plug near the bottom of the electrode?
What exists at the porous plug near the bottom of the electrode?
What component can cause a change in junction potential even if the pH of two solutions is the same?
What component can cause a change in junction potential even if the pH of two solutions is the same?
What type of electrodes are commonly used in potentiometry?
What type of electrodes are commonly used in potentiometry?
Which type of electrode involves a thin glass membrane separating two solutions with different hydrogen ion concentrations?
Which type of electrode involves a thin glass membrane separating two solutions with different hydrogen ion concentrations?
What is the purpose of a saturated calomel reference electrode in potentiometry?
What is the purpose of a saturated calomel reference electrode in potentiometry?
Which type of electrode responds selectively to one ion and allows rapid determination of cations and anions?
Which type of electrode responds selectively to one ion and allows rapid determination of cations and anions?
In potentiometry, which electrodes serve as source or sink for electrons in redox half reactions?
In potentiometry, which electrodes serve as source or sink for electrons in redox half reactions?
What is the main function of metallic indicator electrodes?
What is the main function of metallic indicator electrodes?
What is the advantage of using a Calomel Reference Electrode?
What is the advantage of using a Calomel Reference Electrode?
Which electrode can be used at temperatures greater than 60ºC?
Which electrode can be used at temperatures greater than 60ºC?
What is the main advantage of using a Silver-silver Chloride Reference Electrode?
What is the main advantage of using a Silver-silver Chloride Reference Electrode?
Which type of electrode involves direct equilibrium with its cation in the solution?
Which type of electrode involves direct equilibrium with its cation in the solution?
What is a limitation of electrodes of the first kind, such as Metallic Electrodes?
What is a limitation of electrodes of the first kind, such as Metallic Electrodes?
Which type of indicator electrode is ideal for providing a rapid and reproducible response to changes in analyte ion concentration?
Which type of indicator electrode is ideal for providing a rapid and reproducible response to changes in analyte ion concentration?
