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Zuhaib Khan Grade:
        

Plz explain Gas Eudiometry:

7 years ago

Answers : (1)

askIITIians Expert
21 Points
										

Gas Eudiometry


The realtionship amongst gases, when thay react with one another, is goverened by two laws, namely Gay-Lussac law and Avagadro's law.


Gaseous reactions for investigation purposes are studied in a closed graduated tube open at one end and the other closed end of which is provided with platinum terminals for the passage of electricity through the mixture of gases. Such a tube is known as Eudiometer tube and hence the name Eudiometry also used for Gas analysis.


During Gas Analysis, its Eudiometer tubed filled with mercury is inverted over a trough containing mercury. A known volume of the gas or gaseous mixture to be studied is next introduced, which displaces an equivalent amount of mercury.


The following reactions among gases can be drawn:



  • Volume-Volume relationship amongst gases or simple Gaseous reactions.



  • Composition of Gaseous mixtures.



  • Molecular formulae of gases



  • Molecular formulae of Gaseous Hydrocarbons


The various reagents used for absorbing different gases are


O3 turpentine oil


O2 → alkaline pyrogallol


NO → FeSO4 Sol.


CO2, SO2 → alkali Sol. (NaOH, KOH, Ca(OH)2, HOCH2CH2NH2, etc.)


NH3 acid Sol. or CuSO4 Sol.


Cl2 → water

7 years ago
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