COCl2(g) ? CO(g) + Cl2(g) Keq = 7.6 × 10–4. COCl2 is introduced in a closed container until its concentration is 0.890 M. What will be the concentration of Cl2(g) once the reaction has reached equilibrium? 7.6 × 10–4 M 6.76 × 10–4 M 2.6 × 10–2 M 2.8 × 10–2 M

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