Question

Write the equilibrium constant expression for this reaction: NH(aq)—>NH3(aq)+H+ (aq)

Answer 1

Answer:

$k = \frac{[NH_3][H^+]}{[NH_4^+]}$

Explanation:

The equilibrium constant of a reaction is defined as the ratio of the concentrations of products over concentrations of reactants powered to its coefficients. For the reaction:

aA + bB ⇄ cC + dD

The equilibrium constant, k, is written as:

$k = \frac{[C]^c[D]^d}{[A]^a[B]^b}$

For the reaction:

NH₄⁺(aq) ⇄ NH₃(aq) + H⁺(aq)

The equilibrium constant is:

$k = \frac{[NH_3][H^+]}{[NH_4^+]}$