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What is inert electrode in a cell?

What is inert electrode in a cell?

An inert electrode is a metal submerged in an aqueous solution of ion compounds that transfers electrons rather than exchanging ions with the aqueous solution. It does not participate or interfere in the chemical reaction but serves as a source of electrons. Platinum is usually the metal used as an inert electrode.

Why are the inert electrodes are present in the reaction?

Inert electrodes are needed to conduct electrons when there is no metal involved in the redox reaction. If a solid metal is involved, then the inert electrode is not needed.

What is not an inert electrode?

1 Answer. (d) Inert electrode does not participate in redox reaction and acts only as source or sink for electrons. It provides surface either for oxidation or for reduction reaction.

What is the function of a platinum electrode?

platinum is a inert electrode,thus it do not participate in the cell reaction but provide a surface or platform for oxidation and reduction reaction. It also helps in conduction of electrons.

What is the symbol for platinum?

Pt

How do you clean platinum working electrodes?

POLISHING PLATINUM AND NATIVE GOLD

  1. Rinse the electrode surface with water followed by methanol to flush away any encrusted material on the surface.
  2. Wet the white nylon disk with DISTILLED water and apply a few drops of the 1-┬Ám diamond polish slurry.
  3. Place the electrode face down on the pad.

Why do you have to polish the electrodes before using them in a cell?

Working electrodes should be polished immediately before use, because even a few hours exposure to air will degrade the quality of the electrode surface and inhibit electron transfer, resulting in strange features on the CV.

How do you make carbon paste electrodes?

The carbon paste was prepared by thoroughly mixing 5 g of graphite powder with 1.8 ml of paraffin oil in a mortar with pestle. The carbon paste was packed into the hole of the electrode body Page 3 Int. J. Electrochem. Sci., Vol. 8, 2013 1342 and smoothed on a clean paper until it had a shiny appearance.

Which electrode is used in Conductometer?

The two electrode cell is the most commonly used conductivity cell Glass cells have electrodes made of platinum. Epoxy cells have easy to clean graphite plates.

Which cell is used in conductometric titration?

A conductivity measuring cell consists of two electrodes that face each other and are as inert as possible. Platinum is generally used as the electrode material.

What is the difference between volumetric and conductometric titrations?

The indicators used in volumetric titrations, undergo color change in a range of pH. However, the end point in conductometric titration is sharp, as direct change in conductivity can be obtained. Conductometric titration can be used with very diluted solutions and weak acids. It gives more accurate end-point.