Consider the reaction: 2 IF5 (g) + I4F2 (g) ⇋ 3 I2 (g) + 6 F2 (g)

Question

6.0 mol of IF5 and 8.0 mol of I4F2 are placed in a 5.0 L container. At equilibrium, 6.0 mol of I4F2 are present. Calculate K for this reaction.

Answer 1

This is the same type of problem you posted earlier; i.e., the SO2 + O2 ==> SO3 problem. This one is done the same way.

Answer 2

I saw the follow up to the SO2 problem. Where is the confusion. If we work one in detail as I did you should be able to follow.