The following heterogeneous equilibrium occurs in a sealed container at constant…

CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

The following heterogeneous equilibrium occurs in a sealed container at constant temperature: 2NH4Cl(s) ⇌ NH3(g) + HCl(g) + 2NH3(aq) The initial Kc written by a classmate is Kc = [NH3(g)][HCl(g)][NH3(aq)] / [NH4Cl]^2 Rewrite the expression correctly and, in one concise sentence, justify the omission of any species you removed.

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