1g of a gaseous hydrocarbon CHy on
combustion consumes 3.636g of oxygen
and gave 3g of CO2. What is the value of y?
(Mol. Wt. of C.Hy is 44)
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If the molecular weight of hydrocarbon is given then there is a short way to solve the question.
Since RAM of C = 12 and RAM of H = 1
We can say that the hydrocarbon is made up of 3 carbons and 8 hydrogens.
Molecular formula is C₃H₈ and therefore y = 8/3
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