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An organic compound contains C = …

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An organic compound contains C = 40% . H = 6.6%if vapour density of the compound is 15 ,find its molecular formula .

Posted by Ragini Ragini 1 year, 5 months ago

CBSE > Class 11 > Chemistry

1 answers

Ragini Ragini 1 year, 5 months ago

Molecular formula=n×Empirical formula N=mol. Wt /mass of EF VD Molecular weight=2×VD =2×15 Molecular weight=30 Total %= [100 -(40+6.66 )]=%of oxygen 100= 100 - 46.66 = 53.34% Atomic mass percent. C. 12. 40 H. 1. 6.66 O. 10. 53.34 At. Ratio. Simple ratio 40\12 =3.33. 3.33\3.33 6.66\1=6.66. 6.66\3.33 53.34\16=3.33 3.33\3.33 C:H:O =1:2:1 Empirical formula=CH2O Mass = 12+(1+2)+16 = 30 N= mol. Wt\mass of EF = 30\30=1 Then, Molecular formula=1×CH²O CH²O

3Thank You

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