Question

Ammonium hydrogen sulfide \(\left(\mathrm{NH}_{4} \mathrm{SH}\right)\) was detected in the atmosphere of Jupiter subsequent to its collision with the comet Shoemaker-Levy. The brium between ammonia, hydrogen sulfide, and \(\mathrm{NH}_{4} \mathrm{SH}\) is described by the following equation:

\(\mathrm{NH}_{4} \mathrm{SH}(s) \rightleftharpoons \mathrm{NH}_{3}(g)+\mathrm{H}_{2} \mathrm{~S}(g)\)

The value of \(\mathrm{K}_{\mathrm{p}}\) for the reaction at \(24^{\circ} \mathrm{C}\) is \(0.126\). Suppose a sealed flask contains a mixture of solid \(\mathrm{NH}_{4} \mathrm{SH}\) and gaseous \(\mathrm{NH}_{3}\) and \(\mathrm{H}_{2} \mathrm{~S}\) at equilibrium. At equilibrium, the partial pressure of \(\mathrm{H}_{2} \mathrm{~S}\) is \(0.355 \mathrm{~atm}\). What is the partial pressure of \(\mathrm{NH}_{3}\) ?

Answer 1