# What is the empirical formula of glucose?

$C {H}_{2} O$
The empirical formula is the simplest WHOLE number ratio representing constituent atoms in a species. We know, or should know, that the formula of glucose is ${C}_{6} {H}_{12} {O}_{6}$, and I divide this thru by $6$, I get the empirical formula $C {H}_{2} O$, which is the same simplest whole number ratio. The $\text{molecular formula}$ is always a multiple of the $\text{empirical formula}$.