Chapter 3: Empirical and Molecular Formulas

What is empirical formula?

• Exact # of atoms

• Simplest whole-numer ratio of atoms

• Another word for molecular

What is molecular formula?

• Simplest whole-number ratio of atoms

• Another word for empirical

• Exact number of atoms

How many hydrogen atoms are present in: Mg(OH)2

• 2

• 1

• 3

• 4

Tags

NGSS.MS-PS1-1

What is the molecular weight of Mg(OH)2

• 58.33

• 59

• 58

• 60

What is the molecular weight of: NH4SO4

• 100

• 120

• 114.1

• 14

Which of the follow demonstrates empirical formula?

• H20

• C2H4

• S8O10

• H2C2O4

Which of the following demonstrates empirical formula?

• Ra2S4

• NaCl

• Mg6B2

• Sr10N2

Which of the following demonstrates molecular formula?

• NaCl

• Sr8N10

• H20

• P2O5

Tags

NGSS.MS-PS1-1

Name the following: Lithium Nitrogen

(a)  

What is the formula for: Ammonium phosphate

(a)