2.

Hydrogen iodide gas decomposes into hydrogen gas and iodine gas according to the equation

below. A 2.25 L container containing this equilibrium system is analyzed and found to contain

2.34 moles of hydrogen iodine and 1.76 moles of hydrogen gas. If Keq for the reaction is

2.86 x 10², what concentration of iodine gas is present in the system? (2 marks) Bonus: what

amount of iodine gas is present in the system? (1 mark)

2 HI(g) → H₂(g) + 12 (8)