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A glass electrode is made of a doped glass membrane and is an electrode which is ion-selective.
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Describe construction of glass electrode?
The glass electrode is made in such a way that it is only sensitive to the specific ion.
What is an hydrogen electrode?
The standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials.
Why glass electrode cannot be used for solution of Ph above 9?
This is because of alkaline error above pH of 9. Alkaline Error is a systematic error that occurs when glass electrodes are used to read the pH of an extremely alkaline solution (pH above 9); the electrode responds to sodium ions as though they were hydrogen ions, giving a pH reading that is consistently too low. However it is now possible to purchase [H electrodes made from special glass that can be used above pH 9.
What is a secondary reference electrode?
The primary reference electrode is the hydrogen electrode, which is rather fiddly to work with. Secondary references are chosen for their stability and their reliable potentials so others can be calibrated against them.
What is bioelectrode?
Electrode with immobilized enzyme on it. Similar name is enzymatic electrode.
What are the Types of ion selective electrodes?
glass electrode, antimony electrode, the hydrogen electrode
What are the advantages of using glass electrode for determining pH of solution?
The advantage of using the glass electrode for determining the PH of a solution is because the glass electrode is very sensitive to any change.
Describe construction of glass electrode?
The glass electrode is made in such a way that it is only sensitive to the specific ion.
What type of electrodes use in pH meter?
Examples: glass electrode, combined electrode, platinum electrode
Constructional diagram for glass electrode?
YES
What type of electrodes are used in potentiometric titration?
Potentiometric titration is a method to detect potential difference between the indicator electrode and reference electrode and thus determine concentration of chemical component, which reacts with reagent added to a solution potentially in equilibrium at the beginning.The popularly used reference electrode is either silver-silver chloride or mercury sulfate electrode, and the indicator electrode is generally made of glass electrode, platinum electrode and silver electrode or ion selective electrode.
Function of pH meter?
A pH meter measures the pH of a solution utilizing a glass electrode and a voltmeter.
What is the difference between ccfl and eefl?
CCFL (cold cathode fluorescent lamp) is different from EEFL (external electrode fluorescent lamp) in that the glass tube of the CCFL contains a small wire electrode that conducts the voltage to excite the gasses in the tube. The glass tube is molded around the electrode and that junction creates a possible point for the gasses to escape and the lamp to fail. EEFL is a completely sealed glass tube with a metal cap or conductive paint on the end acting as the electrode. When the proper voltage is applied to the external electrode, a capacitive connection is established between the electrode and the gasses within the tube and the lamp illuminates. Because the electrodes in CCFL's are in direct contact with the rare gasses, CCFL's run warmer than the EEFL's which are completely cool.
Difference between reference electrode and indicator electrode?
Often electrochemical studies are interested in one of the electrodes of the cell only. The second electrode is present to complete the cell. Electrode of interest is named working electrode or the indicator electrode; the second electrode is know as reference electrode or auxiliary electrode (counter electrode).
Which electrode is polarisable electrode in Polarography?
The dropping mercury electrode
Can the saturated calomel reference electrode be used in strong alkaline media such as 2-5 N KOH solution?
No, Use a Mercury Oxide electrode in alkalai Media. Strong NaOH will damage glass. Available from Koslow Scientific Co.
What is electrode potential-?
Electrode potential is the voltage that an electrode is at. This has to be measured versus a reference electrode
