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Standard hydrogen electrode forms the basis of the thermodynamic scale of oxidation reduction potentials.
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What is the use of mercury in standard hydrogen electrode?
i think its for effective conduction .
What are the Types of ion selective electrodes?
glass electrode, antimony electrode, the hydrogen electrode
How should the values found using the zinc electrode as a standard compare with those based on the standard hydrogen electrode?
Perhaps a rephrasing of the question would help; I've never seen a hydrogen electrode so I don't know how it compares to zinc. The process being done would probably also help (are you electroplating or separating oxygen from hydrogen or ...?), as would the solution the electrodes are immersed in (does the solution react with zinc at room temperature, is it being used in a gas, ...?)
Describe the construction of calomel electrode?
It consists of tube in the bottom of which is a layer of mercury ,over which is placed a paste of Hg+HgCl2.The remaining portion of cell is filled with a solution of normal or decinormal or saturated solution of KCl. a platinum wire dipping into the mercury layer is used for making electrical contact. the side tube is used for electrode is formulated as;Hg,Hg2Cl2,KCl. the electrode can be coupled with the hydrogen electrode of unknown pH.
How to calculate hydrogen electrode?
By doing the Nernst equation
How are standard electrode potentials determined for the half-cells listed in the Standard Reduction Potentials table?
The standard electrode potentials are determined on the basis of the Hydrogen scale.The standard electrode potential of Hydrogen is arbitrarily fixed as zero.
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.
What is difference between standard hydrogen electrode and normal hydrogen electrode?
E(SCE)-E(H)=241 mV @25°C SHE is a primary standard electrode bt SCE is secondary reference electrode use for more easier work than SHE & SCE,s potential also measured by taking SHE as reference electrode.
Why is platinum coated with platinum black used in the standard hydrogen electrode?
The platinum black provides a very high surface area that promotes the speed of reaction at the electrode and thereby virtually eliminates overpotential at the standard hydrogen electrode. An overpotential would lead to misleading values of potential of other electrodes compared with a standard hydrogen electrode that manifested overpotential.
Which element is the reference element is chemistry?
Carbon is the reference element for the definition of the mole. In electrochemistry, the reference element/electrode is the Hydrogen electrode and all electrode potentials are against the hydrogen standard.
What is the use of mercury in standard hydrogen electrode?
i think its for effective conduction .
What is the oxidation reduction potential of hydrogen?
Definition: The standard hydrogen electrode is the standard measurement of electrode potential for the thermodynamic scale of redox potentials.The standard is determined by the potential of a platinum electrode in the redox half reaction2 H+(aq) + 2 e- → H2(g) at 25 °C.The standard hydrogen electrode is often abbreviated SHE.Also Known As: normal hydrogen electrode or NHE
Why is standard hydrogen electrode called reversible electrode?
Depending on the other cell used, it can turn H+ ions into hydrogen gas, or it can turn hydrogen gas into H+ ions. Thus it is reversible.
What are the Types of ion selective electrodes?
glass electrode, antimony electrode, the hydrogen electrode
Advantages of the Standard electrode potential?
Standard electrode potential is a redox electrode. This is the forms the basis of the thermodynamic scale.
How should the values found using the zinc electrode as a standard compare with those based on the standard hydrogen electrode?
Perhaps a rephrasing of the question would help; I've never seen a hydrogen electrode so I don't know how it compares to zinc. The process being done would probably also help (are you electroplating or separating oxygen from hydrogen or ...?), as would the solution the electrodes are immersed in (does the solution react with zinc at room temperature, is it being used in a gas, ...?)
What is mean by law hydrogen electrode?
Low Hydrogen? It is a welding electrode that has controlled Hydrogen levels for use in SMAW i.e E7018. Not to be confused with a low hydrogen processes like GMAW and GTAW
