Example for next four problems:

Question

Compound formula: MgCl2

Element: Mg

# of Atoms: 1

Element: Cl

# of Atoms: 2

gram formula weight (g): 95.21

Compound Formula: KNO3

Element: K

# of Atoms:

Element: N

# of Atoms:

Element: O

# of Atoms:

gram formula weight (g):

Answer 1

Element: K

# of Atoms: 1

Element: N

# of Atoms: 1

Element: O

# of Atoms: 3

gram formula weight (g): 101.1