Homework Assignment 9

C.5 #1-3 p. 62

1. 

• a. The solution goes from being unsaturated to saturated.
• b. 
  

2.

• a.  
  
  
  
  
  
  
  
• b. 
• i. 
  
• ii. 20 g

3. 

• a. 
  
  
  
  
  
• b. 
  
• c. The models in 3a and 3b are different because the one in 3b is less concentrated. The molecules are more spread out as a result of the additional water that was added, whereas in 3a, there is less water and the KCl molecules are closer together.