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2. Solid ammonium iodide decomposes to yield ammonia gas(NH3) and hydrogen iodide gas at 400oF. The equilibrium constant for this reaction is 0.215. Ten grams of ammonium iodide are sealed in a 10.0 L flask at equilibrium. Complete the following:

a. Write a balanced reaction

b. What is the total pressure in the flask at equilibrium?

c. How much ammonium iodide decomposes?

1 answer

NH4I ==> NH3 +HI

Is that 0.215 = Kc or Kp?
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