****************************
* AP CHEMISTRY ASSIGNMENTS *
****************************
ACIDS AND BASES
_________________________________________________
Buffers
Friday, 4/25
Problems: 117-119, 121-126
Read: Rest of Chapter 14, Equivalent Mass Lab
Monday, 4/29
Read: Chapter 15.1-15.2
Problems (Ch 15): 21, 23, 1-3 below
1. Find the pH of a soln made by adding 10. mL of 2.0M HCl to 500. mL of a 0.50 M CH3COOH/0.40 M CH3COONa solution?
2. Find the pH of a soln made by adding 10. mL of 2.0M HCl to 500. mL of water?
3. For the following problems, consider a solution that is 0.25 M NH3 and 0.35 M NH4Cl.
a. What is the pH of the solution?
b. If 1.12 grams of KOH are added to 500. mL of the solution, what would the pH be?
c. If 15 mL of 1.75 M HNO3 is added to 750. mL of the original soultion, what would the pH be?
________________________________________________
Titrations
Tuesday, 4/30
Read: Chapter 15.3-15.4
Problems (Ch 15): 47a, 50, 56, 57, 59
|
|
