Name ____________________
Section 11.1 Assessment
1. How is a mole similar to a dozen?
2. What is the relationship between Avogadro's number and one mole?
3. Explain how you can convert from the number of representative particles of a
substance to mole of that substance.
4. Explain why chemist use the mole.
Mole Conversions
Avogadro's Number:
1 mol = 6.02 x 1023 particles
This equality can be written as a set of two conversion factors. They are:


1 mole


23
 6.02 x10 particles 
 6.02 x1023 particles 


1 mole


Mole-Particle Conversions
5. Determine the number of atoms in 2.5 mol Zn.
6. Given 3.25 mol AgNO3, determine the number of formula units.
7. Calculate the number of molecules in 11.5 mol H2O.
8. How many moles contain each of the following?
a. 5.75x10^24 atoms Al
b. 3.75x10^24 molecules Carbon Dioxide.
c. 3.58x10^23 formula units ZnCl2
d. 2.50x10^20 atoms Fe