CHM 2046C Module 11 Chapter 17 Exam

Part C: Derivation of K_w K_h K_b and K_a 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_b 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_b expression from the K_a and the K_w expressions.

There is the following connection:

K_a x K_b = K_w

Using the ionization reaction of HCN in water, demonstrate the development of the above formula from the K_a of HCN and its conjugate base K_b of CN^-