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Grade: 11

                        

one volume of a compound of carbon , hydrogen and oxygen was exploded with 2.5 volumes of oxygen .the resultant volume contained 2 volumes of water vapour and 2 volumes of c02. all volumes were measured in identical conditions. determine the formula of the compound

3 years ago

Answers : (1)

abhay bajaj
48 Points
							Let compound be CxHyOz Therfore  balanced eqn is CxHyOz +(x +y /4-z /2) - - - - - >xCO2 +y/2 H2O Therfore V Litres CxHyOz  will react with(x +y/4-z/2) L O2 to form x)L CO2 and y/2L H2OFrm the question ;V(x +y /4-z /2)=2.5Vx=2And Vy/2=2Solving  these :Vz=1;Vx=2;Vy=4Mole fraction  of H:V(y) /V(x+y+z) =4/7Mole fraction  of C:V(x) /V(x+y+z) =2/7Mole fraction  of O:V(z) /V(x+y+z) =1 /7Hence compound is C2H4O OR CH3CHOHope it helped youThank you!!!!
						
3 years ago
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