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1. A sample of solid ammonium chloride was placed in an evacuated container and then heated...

1. A sample of solid ammonium chloride was placed in an evacuated container and then heated so that it decomposed to ammonia gas and hydrogen chloride gas. After heating, the partial pressure of NH3 in the container was found to be 2.2 atm. Calculate Kp at this temperature for the decomposition reaction: NH4Cl (s) ⇄ NH3 (g) + HCl (g).

2. Consider the endothermic reaction Fe3+ (aq) + Cl¯ (aq) ⇄ FeCl2+ (aq). Use Le Châtelier’s principle to predict how the concentration of the FeCl2+ ion will change when:

a. Fe(NO3)3 is added to the solution

b. Cl¯ is precipitated as AgCl be addition of AgNO3 to the solution.

c. The temperature of the solution is increased.

ANSWER ALL QUESTIONS 1 AND 2 PARTS A-C

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