Chapter 10.8, Problem 10.57PP

Consider the buffer system of hydrofluoric acid, HF, and its salt, NaF. HF(aq) +H₂0(1) H₃0 (aq) + F- (aq)

a. The purpose of this buffer system is to:
1. maintain [HF]
2. maintain [F ]
3. maintain pH
b. The salt of the %weak acid is needed to:
1. provide the conjugate base
2. neutralize added H0 l 3. provide the conjugate acid

c. If OH is added, it is neutralized by:
1. the salt
2.H ₂0
3. H₃0

d. When H₃0+ is added, the equilibrium shifts in the direction of the:
1. reactants
2. products
3. does not change