Problem: At a certain temperature, the equilibrium constant K c for this reaction is 53.3.H2 + I 2 → 2 HIAt this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in 1.00L container to react. What concentration of HI is present at equilibrium?

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We’re given the following equilibrium reaction:

H2 + I2(g)  2 HI; Kc = 53.3


We know that the initial amount of H2 and I2 is 0.800 mol. In a 1.00 L container, the concentration of each is:



From this, we can construct an ICE table:



The Kc expression for the reaction is:



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Problem Details

At a certain temperature, the equilibrium constant K c for this reaction is 53.3.

H2 + I 2 → 2 HI

At this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in 1.00L container to react. What concentration of HI is present at equilibrium?

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