At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3.
H2(g) + I2 (g) ------> 2HI(g)
Kc = 53.3
At this temperature, 0.700 mol of H2 and 0.700 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present at equilibrium?