# How do you determine a structural formula?

Jul 2, 2017

#### Answer:

How else but by experiment........?

#### Explanation:

A chemist would routinely perform combustion analysis to get %C,H,N, this could be used to determine the $\text{empirical formula}$. A determination of molecular mass could then be attempted, and this then gives the $\text{molecular formula}$, which is a whole number multiple of the $\text{empirical formula}$. Given the molecular formula we might take melting points of the compounds and its derivatives, or use spectroscopic techniques, and get an idea of the connectivity.

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