contestada

Given the following Kb values, which cation is the strongest acid?
Base Kb
NH3 1.8 x 10-5
C2H5NH2 5.6 x 10-4
C5H5N 1.7 x 10-9
C8H10N4O2 5.3 x 10-14
(NH2)2CO 1.5 x 10-14
A. NH4+.
B. C2H5NH3+.
C. C5H6N+.
D. [C8H11N4O2]+.
E. [NH2NH3CO]+.

Respuesta :

okpalawalter8

Answer:

The correct  option is E

Explanation:

Generally the a base with the highest [tex]K_b[/tex] is the strongest base and from the data given

       [tex]C_2H_5NH_2[/tex] has the highest value of [tex]K_b[/tex] so [tex]C_2H_5NH_2[/tex]  is the strongest base while  [tex](NH_2)_2CO[/tex] has the lowest value of [tex]K_b[/tex] so [tex](NH_2)_2CO[/tex]  is the weakest base

  Generally the conjugate acid of a weak base is always a strong acid

So

  For  [tex](NH_2)_2CO[/tex] which the weakest base it conjugate acid which is [tex][NH_2NH_3CO]^+[/tex] will be the strongest acid

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