Using Moles to Count Atoms
Give three examples of counting units.

 
 
 

What is a mole?
 
 

What is Avogadro’s constant?
 
 

Write Avogadro’s constant as a number (not in scientific notation).
 

Why do we use moles instead of counting atoms?
 

What is a molar mass?
 
 

What units is molar mass given in?
 

If you have one mole of Mg, how many grams do you have?
 
 

What is a conversion factor?
 
 

How would you write the conversation factor for how many days there are in a week?
 
 

How would you write the conversation factor for how many weeks there are in a day?
 
 

What is dimensional analysis?
 
 

How many seconds are in a week?
 
 

If you want 50 eggs, how many dozen must you buy?
 
 

If there are 10 gumballs/21.4 g, how much would 150 gumballs weigh?
 
 

How many gumballs are in 36.38 g?
 
 

What is the molar mass of sulfur?
 
 

What is the mass (in grams) of 2.5 mol of sulfur?
 
 

What is the mass (in grams) of 1.8 mol of Ca?
 
 

What is the mass (in grams) of 0.5 mol of carbon?
 
 

What is the mass (in grams) of 3.2 mol of Cu?
 
 

How many moles are there in 620 g of Hg?
 
 

How many moles are there in 11 g of Si?
 
 


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