The equilibrium for the reaction for the decomposition of PCl5 to chlorine and PCl3 is 0.042.
PCl5(g) ⇌ PCl3(g) + Cl2(g)
If the equilibrium concentrations are [PCl3] = 0.010 M, [Cl2] = 0.10 M, what is the value of [PCl5]?
(a) 0.0020 M
(b) 0.042 M
(c) 0.0010 M
(d) 0.010 M
(e) 0.024 M
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