A hydrocarbon is composed of 85.7% carbon and 14.3% hydrogen by mass.
What is the empirical formula?
If 1.56 g of the hydrocarbon occupies a volume of 1.00 L at 0.984 atm and 50℃, what is the molecular formula?
What is the empirical formula for a substance that is oxygen and phosphorus by mass?
A compound of carbon and hydrogen contains and has a molar mass of 28.1 g/mol. What is its molecular formula?