Write a balanced chemical equation which corresponds to the following equilibrium constant expression.?

Question

Write a balanced chemical equation which corresponds to the following equilibrium constant expression.

K =[F-] [H3O+] / [HF]

a.HF(aq) f F-(aq) + H3O+(aq)
b.H+(aq) + OH-(aq) f H2O(λ)
c.HF(aq) + H2O(λ) f F-(aq) + H3O+(aq)
d.F-(aq) + H3O+(aq) f HF(aq) + H2O(λ)
e.F-(aq) + H3O+(aq) f HF(aq)

Answer 1

Expression for a reaction in water shows all the dissolved products divided by all the dissolved reactants. Any insoluble solids (none this case),and water itself, are assigned a "concentration" of 1, and don't show in the expression.

That should tell you.

Answer 2

a.