One mole of acetic acid, CH3COOH, and 1 mole of ethanol, C2H5OH, were reacted in 1 L vessel and allowed to attain equilibrium at 25°C. The equilibrium mixture was then titrated with standard base and was found to contain 0.667 moles of acetic acid after the following reaction has taken place to form ethyl acetate and water. calculate the equilibrium constant Kc.

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