Sage-Tips

Why acetate ion is a weak base?

There is no rule like conjugate base of a weak acid is a strong base. Acetic acid is a weak acid(pKa=4.8) and pKb of acetate ion is 9.2, hence acetate ion is a weak base.

Why the conjugate base of a strong acid is a weak base and the conjugate acid of a strong base is a weak acid?

Explanation: Since strong acids completely dissociate in water, their conjugate bases cannot bond to a H+ . Weak acid conjugate bases, however, have the ability to bond to H+ ions, this creates an equilibrium in the solution. Just remember the 6 strong acids and that their conjugate bases will not bond to a proton.

Is acetate a strong conjugate base?

Since acetate functions as a weak base, the equilibrium constant is given the label Kb. Soluble salts that contain cations derived from weak bases form solutions that are acidic. The cation is the conjugate acid of a weak base. Example: The Ka for acetic acid is 1.7 x 10-5.

Is acetate ion a strong or weak base?

Acetic acid is about in the middle; it is a moderately weak acid and the acetate ion is a moderately weak base.

Is acetate A weak nucleophile?

Acetate Anion Of the four nucleophiles used in this problem, acetate is both the weakest nucleophile and the weakest base. The 3° halides G & J will not undergo a SN2 reaction with a nucleophile as weak as acetate. Since acetate is not a strong base, if an an E2 elimination takes place it will be slow.

Is acetate ion a stronger base than water?

Both HCN and acetic acid are stronger acids than water, and hydroxide is a stronger base than either acetate or cyanide, so in both cases, the equilibrium lies to the left. Nonetheless, each of these reactions generates enough hydroxide ions to produce a basic solution.

Why is the conjugate base of a strong acid very weak?

A strong acid like HCl donates its proton so readily that there is essentially no tendency for the conjugate base Cl– to reaccept a proton. A strong base like the H– ion accepts a proton and holds it so firmly that there is no tendency for the conjugate acid H2 to donate a proton. Hence, H2 is a very weak acid.

What is the conjugate base of acetate ion?

acetic acid
Acetate ion is the conjugate base of acetic acid. Water is the conjugate base of hydronium ion.

Is acetate a weak or strong Nucleophile?

Acetate Anion The 3° halides G & J will not undergo a SN2 reaction with a nucleophile as weak as acetate. Since acetate is not a strong base, if an an E2 elimination takes place it will be slow.

Is acetate ion a weak nucleophile?

Acetate Anion The 3° halides G & J will not undergo a SN2 reaction with a nucleophile as weak as acetate. Since acetate is not a strong base, if an an E2 elimination takes place it will be slow. H is an unexceptional 2° halide, and may give slow substitution by the SN2 path.

What is the conjugate base of acetic acid?

Acetate ion