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Suppose 25.0 g of HI(g) is injected into a 4.00-L reaction vessel that contains 20.0 g of I2(g). When the system comes to equilibrium at 400°C, what will be the total pressure inside the reaction vessel? (R= 0.08206 L • atmlK • mol) 2H1(g) ••'• H2(g) + I2(g), Kc = 0.0156 at 400°C