P
pookyboy85
Guest
When acetic acid, , dissociates in water, the equilibrium shown below exists:
CH3COOH (aq) + H2O <--> CH3COO- (aq) + H3O+ (aq)
Since the dissociation is an equilibrium reaction, any structural feature that stabilises the CH3COO- and result in increased acidity.
Two factors that affect the stability of CH3COO-, and thus the acid strength of CH3COO-, are: (i) inductive effect of other atoms or groups attached to CH3COO- and (ii) solvation of CH3COO-.
Based on the pKa values given below, which one of the following species is the strongest base???
FCH2COOH pKa 2.7
CLCH2COOH pKa 2.8
BrCH2COOH pKa 2.9
CH3COOH pKa 4.8
a) FCH2COO- b) BrCH2COO-
c) CLCH2COO- d) CH3COO-
CH3COOH (aq) + H2O <--> CH3COO- (aq) + H3O+ (aq)
Since the dissociation is an equilibrium reaction, any structural feature that stabilises the CH3COO- and result in increased acidity.
Two factors that affect the stability of CH3COO-, and thus the acid strength of CH3COO-, are: (i) inductive effect of other atoms or groups attached to CH3COO- and (ii) solvation of CH3COO-.
Based on the pKa values given below, which one of the following species is the strongest base???
FCH2COOH pKa 2.7
CLCH2COOH pKa 2.8
BrCH2COOH pKa 2.9
CH3COOH pKa 4.8
a) FCH2COO- b) BrCH2COO-
c) CLCH2COO- d) CH3COO-