Understanding Molecular and Empirical Formulas

What does a molecular formula indicate about a compound?

• The physical state of the compound

• The total mass of the compound

• The exact number of each type of atom in a molecule

• The ratio of different atoms in the compound

Which of the following is an example of an empirical formula?

• C6H12O6

• H2O

• CH2O

• C6H6

How does an empirical formula differ from a molecular formula?

• It describes the physical properties of the compound

• It indicates the molecular weight

• It shows the ratio of atoms in the compound

• It provides the exact number of atoms in a molecule

What is the empirical formula for benzene?

• C6H6

• CH

• C2H2

• C3H3

How can empirical formulas be used in chemistry?

• To calculate the percentage composition by mass of elements

• To find the boiling point of a compound

• To determine the physical state of a compound

• To predict the color of a compound