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April 19, 2015

Homework Help: Chemistry

Posted by ChemGeek on Sunday, May 27, 2012 at 7:41am.

I am unsure of how to approach this question, any help would be greatly appreciated!

"2.085g of PCl5 were heated to 250C in a 500mL vessel:
PCl5 (g) ⇌ PCl3 (g) + Cl2 (g)

Calculate the initial concentration of PCl5. At equilibrium the concentration of the chlorine is 0.018 mol L-1."

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