AP Chemistry
7.10 Reaction Quotient and Le Châtelier’s Principle
7.9 Introduction to Le Châtelier’s Principle
7.3 Reaction Quotient and Equilibrium Constant
A rigid, sealed \(2.0\text{ L}\) container holds an equilibrium mixture of solid ammonium hydrogen sulfide, \(\text{NH}_4\text{HS(s)}\), ammonia gas, \(\text{NH}_3\text{(g)}\), and hydrogen sulfide gas, \(\text{H}_2\text{S(g)}\), at \(298\text{ K}\), as represented by the chemical equation below.
\[\text{NH}_4\text{HS(s)} \rightleftharpoons \text{NH}_3\text{(g)} + \text{H}_2\text{S(g)}\]
An additional \(1.0\text{ g}\) of pure \(\text{NH}_4\text{HS(s)}\) is added to the container at constant temperature. Which of the following best predicts and explains the effect of this addition on the total gas pressure in the container once equilibrium is re-established?
\[\text{NH}_4\text{HS(s)} \rightleftharpoons \text{NH}_3\text{(g)} + \text{H}_2\text{S(g)}\]
An additional \(1.0\text{ g}\) of pure \(\text{NH}_4\text{HS(s)}\) is added to the container at constant temperature. Which of the following best predicts and explains the effect of this addition on the total gas pressure in the container once equilibrium is re-established?
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