bubbly1054
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Consider this equilibrium constant expression:
What does this expression represent?
A. Kb for H2S
B. Ka for H2S
C. Kb for S2–
D. Kb for HS–
E. Ka for HS–

Consider this equilibrium constant expression What does this expression represent A Kb for H2S B Ka for H2S C Kb for S2 D Kb for HS E Ka for HS class=

Respuesta :

The answer would be: D. Kb for HS–

Kb is the dissociation constant of an acid/base molecule. The word b in Kb is base, which means the formula should have an OH- ion inside it. Ka would be the opposite of Kb where the formula has H+ ion.
In this question, the formula is: [H2S][OH-]/ [HS-]
Since there are OH- ion. Since H2S is acid and HS- is base, I think it should be Kb for HS–

D is the right one

and thats all folks hope this help



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