# A chemistry problem by Juliano Filho

Chemistry Level pending

(BELARUS) An unknown aromatic hydrocarbon $$Х$$ is 89.49% carbon by mass. It is known that the vapor density of $$X$$ at $$1\text{ atm}$$ and $$25^\circ C$$ does not exceed $$10\text{ g/L}$$. Determine the molecular formula of $$X$$ . Type as follows: CXHY- XY

×