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HowwillyoudeterminetheatomicityofgasesusingAvogadro'shypothesis ? |
Answer» Solution :TheAtomicityof anelementcan bederivedusingAvogadro'shypothesis. LETUS considerthefollowingequation Accordingto Avogadro'slaw , 1volumeof anygasoccup'n'numberof molecules. ifn=1 then (i )1 moleculeof hydrogenchloridegasismadeupof `1//2`moleculesofhydrogenand`(1)/(2)`Moleculeof chlorine (ii)But1 moleculeof hydrogenchloridecontainsoneatomofhydrogenand 1 atomofchlorine (III )Hence`(1)/(2) `moleculeof hydrogen =1 atomof hydrogen (IV )OR1 molecule ofhydrogen=2 atoms ofhydrogen (V )SO theatommicityofhydrogenis2 , andmolecularformulais `H_(2) ` similarly , `(1)/(2) ` Molecule ofclorine=1atomofchlorine1 moleculeofchlorine =2atomsofchlorineso theatomicityof chlorineis 2 ,and itsmolecularformulais `Cl_(2)`. |
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