K c for the decomposition of ammonium hydrogen sulfide is 1 8 10 4 at 25C (a) When the pure salt decomposes in a flask, what are the equilibrium concentrations of NH 3 and H 2 S (b) If NH 4 HS is placed in a flask already containing 0 020 mol L of NH 3 and then the system is allowed to come to equi...

To answer these questions we can use the concept of the equilibrium constant Kc and the reaction exp ...

K c for the decomposition of ammonium hydrogen sulfide is 1.8 10 4 at 25C. (a)

Question:

K_c for the decomposition of ammonium hydrogen sulfide is 1.8 × 10⁻⁴ at 25°C.

(a) When the pure salt decomposes in a flask, what are the equilibrium concentrations of NH₃ and H₂S?
(b) If NH₄HS is placed in a flask already containing 0.020 mol/L of NH₃ and then the system is allowed to come to equilibrium, what are the equilibrium concentrations of NH₃ and H₂S?