Final answer:
The empirical formula for cyclooctatetraene, a hydrocarbon with a chemical formula of C8H8, is CH, representing a 1:1 ratio of carbon to hydrogen atoms.
Step-by-step explanation:
The empirical formula is the simplest whole-number ratio of the elements in a compound. Cyclooctatetraene is a hydrocarbon with the chemical formula C8H8. When determining the empirical formula for this compound, we would look for the lowest whole-number ratio between carbon and hydrogen atoms. Since the number of carbon and hydrogen atoms is equal, the empirical formula for cyclooctatetraene is indeed CH, where the ratio of carbon to hydrogen is 1:1.