Answer:
The reaction between cis- and trans-stilbene can be represented as follows:
cis-stilbene ⇌ trans-stilbene
At equilibrium, some of the cis-stilbene will have converted into trans-stilbene, and the concentration of each species will be in equilibrium with each other. The equilibrium constant for this reaction is not given, so we cannot calculate the exact concentrations at equilibrium.
However, we can use the initial concentration of cis-stilbene and the assumption that the reaction reaches equilibrium to estimate the concentrations at equilibrium. Let's assume that x mol/L of cis-stilbene has reacted to form trans-stilbene, and let's further assume that the equilibrium concentration of trans-stilbene is also x mol/L. Then, the equilibrium concentration of cis-stilbene will be (0.850 - x) mol/L.
Therefore, at equilibrium, the concentrations of cis- and trans-stilbene will be (0.850 - x) mol/L and x mol/L, respectively.
Step-by-step explanation:
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