3. Chemical Reactions

How many oxygen atoms are present in one formula unit of Al_2(SO_4)_3?

How many different elements are present in the compound C6H12O6?

What is the empirical formula for the compound P_4O_6?

Which of the following represents the empirical formula for the compound a3b9?

Which molecular formula is correctly paired with its corresponding empirical formula?

What is the empirical formula of a compound with the molecular formula N_2O_4?

Which statement is true about an empirical formula?

A sample of an unknown compound was decomposed and found to be composed of 1.36 mol of oxygen, 4.10 mol of hydrogen, and 2.05 mol of carbon. What is the empirical formula of the unknown compound?

Which statement best describes the difference between an empirical formula and a molecular formula?

Which pair of compounds has the same empirical formula?

A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen by mass. What is the empirical formula ratio of carbon to hydrogen to oxygen in this compound?

Which of the following is the empirical formula for propene (C3H6)?

Which pair of compounds has the same empirical formula?

Which of the following statements about empirical and molecular formulas is correct?

What is the empirical formula of $N_2{O}_4$?