Empirical and Molecular Formula Formative
Calculate the percent by mass of oxygen in calcium hydroxide.
State one example of a compound (ionic or covalent, your choice) whose IUPAC formula is both the empirical formula and the molecular formula. Be sure to explain your answer.
An unknown has an empirical formula of C2OH4 and a molar mass of 88.0 g/mole. What is the molecular formula of this compound?
If a compound contains only 0.100 moles carbon and 0.300 moles hydrogen (no other elements), what is the empirical formula of the compound?
A compound contains 53.4% carbon and 11.11% hydrogen, with the rest being oxygen. What is the empirical formula for the compound?