equilibrium

At a particular temperature, K = 1.00 102 for the following reaction.
H2(g) + I2(g) 2 HI(g)

In an experiment, 1.71 mol H2, 1.71 mol I2, and 1.71 mol HI are introduced into a 1.00-L container. Calculate the concentrations of all species when equilibrium is reached.
H2 ____ M
I2 ____ M
HI ____ M

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