# Chapter 15 Principles of Chemical Reactivity: Equilibria - Study Questions - Page 583b: 11

See the answer below.

#### Work Step by Step

a) The concentration of CO and Cl2 reacted from each: x The concentration of COCl2 formed: x The concentration of Cl2 at equilibrium is $0.00301\ M=0.00609\ M-x\rightarrow x=0.00308\ M$ At equilibrium then, $[COCl_2]=0.00308\ M, [CO]=0.0102\ M-0.00308\ M=0.00712\ M$ b) $K=[COCl_2]/[Cl_2][CO]$ $K=0.00308/0.00712/0.00301=143.2$

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