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Chemistry 7 Online
OpenStudy (anonymous):

K = 0.040 for the reaction below at 450 °C. If the reaction starts with 0.20 M Cl2 and 0.20 M PCl3, what concentration of PCl5 will be present at equilibrium? PCl5(g) <====> PCl3(g) + Cl2(g) I know that the answer is 0.13M but can someone explain how to get it?

OpenStudy (cuanchi):

are you sure that is the answer? 0.13M or 0.31M??

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