Michael and aldol condensation reactions


Assignment:

We are preparing an a,b-unsaturated ketone via Michael and aldol condensation reactions. The reactants are trans-chalcone and ethyl acetoacetate (in ethanol and NaOH). This creates 6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone. What I'm wondering is:

Why is it possible to separate the product from sodium hydroxide using acetone?
Could you tell me what is the purpose of this reaction (Michael and aldol condensation reactions), and the stepwise mechanism of the reaction.

Also if we started with 0.24 gr of trans-chalcone , 0.15 gr of ethyl acetoacetate what would be the theoretical yield?

Provide complete and step by step solution for the question and show calculations and use formulas.

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Chemistry: Michael and aldol condensation reactions
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