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Calomel electrode is a metal-sparingly soluble salt electrode. It is used as secondary reference electrode to determine the standard potentials of the electrode. Construction : The electrode consists of a glass tube provided with a bent side tube and another side tube B. A little H g is placed at the bottom of the dry glass tube. A rubber bung ...
The emf of the cells obtained by combining zinc and copper electrodes of the Daniell cell with calomel electrodes are 1.083 volt and −0.018 volt respectively at 25∘C. If the reduction potential of normal calomel electrode is +0.28 volt, find he emf of the Daniell cell. View Solution. Q 5. Assertion :The reference electrode of silver-silver ...
The electrode whose potential is arbritarily fixed to a certain value or if it is exactly known as reference electrode. → In Calomel electrode:- A small amount of Mercury is placed at the bottom of the broad tube.
The cell Pt, H 2 (1 a t m) | H + (p H = x) | | Normal calomel Electrode has an EMF of 0.67 V at 25 ∘ C. The pH of the solution is: The pH of the solution is: The oxidation potential of the calomel electrode on hydrogen scale is − 0.28 V .
The cell Pt, H 2 (1 a t m) | H + (p H = x) | | Normal calomel Electrode has an EMF of 0.67 V at 25 ∘ C. The pH of the solution is: The oxidation potential of the calomel electrode on hydrogen scale is − 0.28 V. (write the value to the nearest integer)
Assertion: In the calomel half-cell, the reduction reaction to be considered is Hg 2 Cl 2 (s) + 2e − → 2Hg (l) + 2Cl − (aq). Reason: The Saturated calomel electrode (SCE) is a reference electrode based on the reaction between elemental mercury and mercury(I) chloride.
The e.m.f of the cell obtained by combining Zn and Cu electrode of a Daniel cell with N calomel electrode in two different arrangements are 1.083 V and 0.018 V respectively at 25 ∘ C. If the standard reduction potential of N calomel electrode is 0.28 V the emf (V) of Daniel cell is _____ (write the value to the nearest integer)
The cell Pt, H 2 (1 a t m) | H + (p H = x) | | Normal calomel Electrode has an EMF of 0.67 V at 25 ∘ C. The pH of the solution is: The oxidation potential of the calomel electrode on hydrogen scale is − 0.28 V. (write the value to the nearest integer)
The second electrode is an electrode of a known potential and is called a reference electrode. Calomel Electrode: A saturated calomel electrode H g / H g 2 C l 2 ( s ) , K C l (solution) is now used as a secondary reference electrode.
The cell Pt, H 2 (1 a t m) | H + (p H = x) | | Normal calomel Electrode has an EMF of 0.67 V at 25 ∘ C. The pH of the solution is: The oxidation potential of the calomel electrode on hydrogen scale is − 0.28 V. (write the value to the nearest integer)
