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At 400ºC, Kc = 64 for the Equilibrium H2(g)

Question 116

Multiple Choice

At 400ºC, Kc = 64 for the equilibrium H2(g) + I2(g) (⇌) 2HI(g) . If 3.00 mol H2 and 3.00 mol I2 are introduced into an empty 4.0 L vessel, find the equilibrium concentration of HI at 400ºC.


A) 0.15 M
B) 1.2 M
C) 2.4 M
D) 4.8 M
E) 5.8 M

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