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  4. Empirical formula of compound having molar mass 58 is C2H5 . Number of structural isomers possible, are

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Q. Empirical formula of compound having molar mass $58$ is $C_{2}H_{5}$ . Number of structural isomers possible, are

Delhi UMET/DPMTDelhi UMET/DPMT 2008

Solution:

Empirical formula is $C_{2} H_{5}$.
Empirical mass formula $=29$.
Molar mass $=58$ Molecular formula will be $C_{4} H_{10}$.
The molecular formula is $C_{4} H_{10}$ and the isomers are two (chair isomers) in number.
$CH _{3}- CH _{2}- CH _{2}- CH _{3}, CH _{3}- \underset{\overset{|}{CH_3}}{C}H - CH _{3}$