A flask containing 0.50 atm of animonia contains some solid `NH_4HS` which undergoes dissociation according to `NH_(4)HS (s) Leftrightarrow +H_2S (g).` Calculate the pressure of `NH_3 and H_2S` at equilibrium `(K_p= 0.11).` Also, calculate the total pressure.

Explanation

To solve the problem, we need to analyze the dissociation of solid ammonium hydrosulfide (NH₄HS) into ammonia (NH₃) and hydrogen sulfide (H₂S) gas. The equilibrium expression for this reaction can be expressed in terms of partial pressures.

### Step-by-Step Solution:

1. **Write the Reaction:**
The dissociation of ammonium hydrosulfide can be represented as:
\[
NH_4HS (s) \leftrightarrow NH_3 (g) + H_2S (g)
...