Standard Hydrogen Electrode Definition ,Construction ,Working | Determination of Electrode potential

Standard Hydrogen Electrode Definition ,Construction ,Working | Determination of Electrode potential

It is used as a primary standard (reference electrode) For measuring the potential of other electrodes. It can act both as anode and cathode. Construction of SHE: 1M HCl solution Temperature= 25 C Pressure= 1 atm Electrode Potential = 0.00V SHE consists of a platinum foil, which is coated with finely powdered platinum so as to increase its surface area and rate of reaction.The platinum foil is fitted in a glass tube and suspended in 1M HCl solution, at a pressure of 1 atmosphere. The platinum Foil acts as an electrical conductor and helps to establish equilibrium b/w hydrogen gas and its ions in solution. Determination of Electrode Potential: The potential of an electrode can be measured by coupling with standard hydrogen electrode (SHE). SHE and the electrode are dipped in one Molar aqueous solution of their ions in Separate compartments. The two solutions are connected by a salt Bridge. A voltmeter is inserted in the wire to measure the current flow b/w SHE & The electrode. At anode oxidation takes place and at cathode reduction takes place.
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Few Video Links of Chemistry important topics are as follow:

What is the |Difference between Oxidation potential and Reduction potential | Electrode potential Galvanic cell or Voltaic cell Construction and Working | Galvanic cell Animation Balancing Redox reaction by oxidation number change method (Part 1) 2) Balancing Redox reaction by half reaction method (Part 1) 2) Difference between oxidation and reduction: Difference between oxidizing agent and reducing agent: to find Oxidation Number | Oxidation state determination | Compound and Ion Difference between Oxidation and Reduction , Oxidizing agent and Reducing agent,Oxidation State and rules for assigning oxidation state: Arrhenius Concept of acid and base: Bronsted-Lowery concept of acid and base: Buffer Solution: Joule Thomson effect: Evaporation: viscosity: Liquid Crystals: Orbitals Subshells and Shells: Quantum Numbers: Liquefaction of gases: Plasma: Vapour pressure: Measurement of Surface Tension: Importance of equilibrium constant: Atomic Electronic configuration: Vapour pressure & Boiling: Law of Mass Action: Hybridization Tricks & Tips: Boyle’s Law: Boyle’s Law Experiment: Charle’s law: Ideal Gas Law: Dalton’s law of Partial Pressure: Crystalline solid vs Amorphous solid : CLASSIFICATION OF CRYSTALLINE SOLIDS – SOLID STATES PROPERTIES OF LIQUIDS: STATE OF MATTER Kinetic Molecular Theory Of Gases Animation

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