Consider the reaction.   PCl5(g)↽−−⇀PCl3(g)+Cl2(g)?c=0.0420PCl5(g)↽−−⇀PCl3(g)+Cl2(g)Kc=0.0420   The concentrations of the products at equilibrium are [PCl3]=0.230 M[PCl3]=0.230 M and [Cl2]=0.230 M[Cl2]=0.230 M. What is the concentration of the reactant, PCl5PCl5, at equilibrium?

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter15: Principles Of Chemical Reactivity: Equilibria
Section15.4: Using Equilibrium Constants In Calculations
Problem 15.5CYU: The decomposition of PCl5(g) to form PCl3(g) and Cl2(g) has Kc = 33.3 at a high temperature. If the...
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Consider the reaction.

 

PCl5(g)↽−−⇀PCl3(g)+Cl2(g)?c=0.0420PCl5(g)↽−−⇀PCl3(g)+Cl2(g)Kc=0.0420

 

The concentrations of the products at equilibrium are [PCl3]=0.230 M[PCl3]=0.230 M and [Cl2]=0.230 M[Cl2]=0.230 M. What is the concentration of the reactant, PCl5PCl5, at equilibrium?

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