Calculating Formula Mass

Using your periodic Table, calculate the formula mass of O₂.

Answer:

(a)  

Using your periodic Table, calculate the formula mass of C₂H₅OH.

(a)  

Tags

NGSS.MS-PS1-1

An item has a mass of 50g and a volume of 2cm. What is the item's density?

• 30

• 25

• 5

What is the molar mass of table salt (NaCl)?

• 116.886 g/mol

• 35.453 g/mol

• 22.990 g/mol

• 58.443 g/mol

Tags

NGSS.HS-PS1-7

What is the mass of one mole of aluminum?

• 27 g

• 13 g

• 54 g

• 14 g

What is the molar mass of CO₂?

• 12

• 16

• 32

• 44

Calculate the molar mass of NH₄NO₂

• 50 g/mol

• 60 g/mol

• 64 g/mol

• 78 g/mol

Calculate the formula mass of water (H2O).

• 18 g/mol

• 20 g/mol

• 16 g/mol

• 22 g/mol

What is the formula mass of carbon dioxide (CO2)?

• 44 g/mol

• 32 g/mol

• 28 g/mol

• 40 g/mol

Tags

NGSS.MS-PS1-1

Determine the formula mass of sulfuric acid (H2SO4).

• 98 g/mol

• 100 g/mol

• 96 g/mol

• 102 g/mol