The equilibrium constant equation for the reaction of ammonia , a weak base, with water is K=[NH₄⁺][OH⁻] / [NH₃].
Equilibrium constant is a number that expresses the connection between the quantity of products and reactants present at equilibrium in a reversible chemical reaction.
Given chemical reaction is:
NH₃(aq) + H₂O(l) ⇄ NH₄⁺(aq) + OH⁻(aq)
Equilibrium constant equation for the above reaction will be represent as:
K = [NH₄⁺][OH⁻] / [NH₃]
As value of pure water is 1 for the above equation.
Hence equilibrium constant equation for the reaction of ammonia is K=[NH₄⁺][OH⁻] / [NH₃].
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