Chemical Compounds and Formula Mass

What is the relative formula mass of H2O?

• 18

• 20

• 22

• 24

Fill in the blank: The relative formula mass of CO2 is ____. A) 44 B) 46 C) 48 D) 50.

• 44

• 46

• 48

• 50

What is the relative formula mass of NaCl?

• 58.5

• 60

• 62

• 64

Fill in the blank: The relative formula mass of CH4 is ____.

• 16

• 18

• 20

• 22

What is the relative formula mass of MgO?

• 40

• 42

• 44

• 46

Fill in the blank: The relative formula mass of CaCl2 is ____. A) 111 B) 113 C) 115 D) 117.

• 111

• 113

• 115

• 117

What is the relative formula mass of C2H2?

• 26

• 28

• 30

• 32

Fill in the blank: The relative formula mass of Al2O3 is ____. A) 102 B) 104 C) 106 D) 108.

• 102

• 104

• 106

• 108

What is the relative formula mass of NH4Cl?

• 53.5

• 55.5

• 57.5

• 59.5

Fill in the blank: The relative formula mass of H2SO4 is ____.

• 98

• 100

• 102

• 104