Molar Mass and Avogadro's Number conversion Problems

Which word(s) in a conversion problem lets you know you will be using molar mass in a conversion factor?

• atom

• gram

• mole

• both atom and gram

Which would have more atoms?

• 1 mole of Li
• 1 mole of Au
• 1 mole of Si
• None, all are equal

Tags

NGSS.MS-PS1-1

How many conversion factors would you use to solve the following, "Find the mass in grams of 2.00 x 10²³ atoms of Fe."

• 1 Conversion factor

• 2 Conversion factors

Tags

NGSS.HS-PS1-7

What are the units for molar mass?

• grams

• amu

• grams/mole

• Dalton

What is the molar mass of sodium, Na?

• 11

• 22.99

• 45.98

• 3

What is the mass of one mole of aluminum?

• 26.98 g

• 13 g

• .5 g

• 6.022 x 10²³ g

The number 6.022 x 10²³ is called...

• Reeve's number

• Bohr's number

• Durham's number

• Avogadro's number

One mole of sulfur (S) is equal to home many atoms?

• 32.07 atoms

• 16 atoms

• 1.20 x 10²³ atoms

• 6.022 x 10²³ atoms

Which set of conversion factors would you use to convert from grams of Z to atoms of Z?

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• 
• 
• 

Tags

NGSS.HS-PS1-7

Which set of conversion factors would you use to convert from atoms of Z to grams of Z?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-7