Answers

2014-03-10T17:28:47+05:30
Atomic mass        percentage     atomic ratio( %/a.m.)  simple ratio
1)carbon is 12            54.54%          4.545                       2
2)hydrogen is 1          09.09%          9.09                         4
3)oxygen is 16           36.36%          2.2725                     1

:. the empirical formula is C₂H₄O

empirical formula weight =44

vapour density is 44
molecular mass is 2(44)=88

'n' factor = molecular formula weight/Empicical formula weight

'n' factor= 88/44=2
Molecular formula = (Empirical Formula)n
M.F = C₄H₈O₂
0