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Grade 12th passPhysical Chemistry

A hydrocarbon contain 80% C.The vapour density of compound is 30.Empirical compound is

Profile image of Arnav Khandagale
8 Years agoGrade 12th pass
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4 Answers

Profile image of Rushikesh
8 Years ago
V.D.=m/230*2=m=60(wt of hydrocarbon)It contains 80% carbonI.e., 80*60/100=48g carbonAnd remaining hydrogen is 60-48=12g hydrogenNow for em.formulaFind out moles of C and H using W/M= no.of moles48/12:12/11:4CH4
Profile image of Rushikesh
8 Years ago
V.D.=m/230*2=m=60(wt of hydrocarbon) It contains 80% carbonI.e., 80*60/100=48g carbon .And remaining hydrogen is 60-48=12g hydrogenNow for em.formula. Find out moles of C and H using W/M= no.of moles48/12:12/1 1:4 CH4
Profile image of Anmol Yadav
8 Years ago
In CH4 the percentage of carbon is 75 and that of hydrogen is 25.
I there is some mistake in the question.
Profile image of Ravleen Kaur
8 Years ago
Hello Student,

I have attached image for the same.

Regards
IHE560-636_r4.PNG