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Activity: Moles Practice

Example Conversion Factors
The Mole 6.02 × 1023 = 1 mol so 
 6.02 × 1023
------------   or 
   1 mol

   1 mol
------------
 6.02 × 1023
For the element carbon (C) 6.02 × 1023 = 1 mol = 12.011 g so: 
 6.02 × 1023 atoms
------------      or  
   1 mol

   1 mol
------------      or  
 6.02 × 1023 atoms

   1 mol
------------     or  
 12.011 g 

 12.011 g 
------------ 
   1 mol
For the elements carbon (C) and hydrogen (H) in C3H8… 
 3 mol carbon atoms
------------------      or  
   1 mol C3H8

   1 mol C3H8
------------------      or  
 3 mol carbon atoms

 8 mol hydrogen atoms
------------------      or  
   1 mol C3H8

   1 mol C3H8
------------------ 
 8 mol hydrogen atoms

Show work for all calculations!
Find the molar mass of the following elements and compounds

  1. Li
  2. Ca
  3. Ar
  4. Fe
  5. Au
  1. Cl2
  2. O2
  3. N2
  4. NaCl
  5. LiF
  1. FeCl3
  2. AuCl4–
  3. CuO
  4. UF6
  5. Ca3(PO4)2
Calculate the mass in grams for each of the following.
  1. 1 mol Ca
  2. 2 mol Sr
  3. 0.75 mol O2
  4. 0.58 mol FeCl3
  5. 9.3 mol CuO
Find the number of moles for each of the following.
  1. 28.014 g N2
  2. 56.028 g N2
  3. 16.860 g LiF
  4. 542 g Ca3(PO4)2
  5. 958 g C12H22O11
Calculate the following values.
  1. Moles of Ca atoms in 1 mol Ca
  2. Moles of Cl atoms in 2 mol SrCl2
  3. Moles of O atoms in 0.75 mol O2
  4. Moles of Cl atoms in 0.58 mol FeCl3
  5. Moles of Cu atoms in 9.3 mol Cu2O
  1. Moles of N atoms in 28.014 g N2
  2. Moles of O atoms in 56.028 g N2O5
  3. Moles of Na atoms in 16.860 g Na3P
  4. Moles of P atoms in 542 g Ca3(PO4)2
  5. Moles of H atoms in 958 g C12H22O11
This worksheet belongs with the Moles Group Activity.
And the Moles Homework
Last updated: Nov 28, 2017       Home