1. Salt Hydrolysis Reaction of a salt with water that may change the pH of the water.
Salts are ionic compounds derived from acids and bases
So when dissolved in water salts may produce either:
A neutral solution
A basic solution
An acidic solution

2. Salts that hydrolize water to produce alkaline sol’ns
Consist of a cation of a strong base and a anion of a weak acid
NaCH3COO
Cation of NaOH
Anion of CH3COOH

3. When this salt dissolves in water dissociation occurs.
NaCH3COO Na+ + CH3COO-
Water also ionizes
H2O H+ + OH-

4. Acetic acid CH3COOH is formed
AND it has a low Ka value and doesn’t ionize completely the H+ stays bonded
NaOH can form BUT it stays completely ionized as Na+ and OH-
Because it is a strong base
If there are more OH- than H+ in solution the solution is considered BASIC!!!!!!!!!

5. Salts that hydrolyze water to produce acidic solns
The salt of a strong acid and a weak base
NH4Cl dissolved in water produces:
NH4+ Cl- H+ and OH-
Strong acid
stays ionized
Weak base
bonds

6. Salts of a weak base and a weak acid may hydrolyze water, but pH needs to be tested.
Salts of strong bases and strong acids do not hydrolyze water and form neutral solutions
NaCl

7. THE END