a compound has a molar mass of 129 g/mol if its empirical formula is C2H5N then what is the molecular formula

Given :

A compound has a molar mass of 129 g/mol .

Empirical formula of compound is C₂H₅N .

To Find :

The molecular formula of the compound.

Solution :

Empirical mass of compound :

Now, n-factor is :

Multiplying each atom in the formula by 3 , we get :

Molecular Formula, C₆H₁₅N₃

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

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