What is the chemical formula of C4H9 with a molar mass of 114.26 g/mol?
I believe you have quoted an empirical formula. Empirical formulae are distinct from molecular formula.
The empirical formula is the simplest whole number ratio that defines constituent atoms in a species. The molecular formula is always a multiple of the empirical formula; and the mulitple might be
We have to find the multiple
Here I used the atomic masses of carbon and hydrogen. It is pretty clear that the mulitple,
So molecular formula