CHEM 1212 Module Eleven-Chapter 17 Name:____________

Part J: pH of Salts 10 points

Predict whether the following salts will test

A. acidic, B. basic, N neutral ? Not Enough Information to Predict when dissolved in water. Then show the hydrolysis reaction, if any

_____1. KCN(s) + HOH à

_____2. KNO₃(s) + HOH à

_____3. NH₄NO₃(s) + HOH à

_____4. KC₂H₃O₂ (s) + HOH à

_____ 5. NH₄C₂H₃O₂ (s) + HOH à

Part K: Derivation of K_w & K_h Chapter 17 10 points

Write the ionization reaction of water, then develop the special K for water: K_w from the K_c

Write the hydrolysis reaction for Sodium acetate, NaC₂H₃O_{2 ,} when it is dissolved in water. Write the K_h expression for this reaction: Write the ionization equilibrium expression for the K_a of acetic acid: HC₂H₃O₂ and the K_w expression for water. Derive the K_h expression from the K_a and the K_w expressions.