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Equilibrium Concentration Chemistry Problem Need help. Can you tell me where I go wrong? Equation: _ = subscript Kp = 322 Br_2(g) + I_2(g) <-> 2IBr (g) Initial Br_2 partial pressure = .05 Initial I_2 partial pressure = .04 ICE TABLE I .05 .04 0 C -x -x +2x E .05-x .04-x 2x 322 = (2x)^2 / (.05-x)(.04-x) 322(.05-x)(.04-x) = 4x^2 322(x^2 - .09x + .002) = 4x^2 (x^2 - .09x + .002) = 4x^2/322 (1 - 4/322)x^2 -.09x + .002 = 0 a= 318/322 b= -.09 c= .002 Quadratic formula gives me .0375 But solving for Kp again gives me only 180 instead of 322. Halp