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A student starts with 0.473 g of pure 4‑aminobenzoic acid, (molar mass 137.14 g/mol ) and ends up with 0.423 g of benzocaine (molar mass 165.19 g/mol ).

Given that ethanol is in excess, what are the theoretical and percent yields for this reaction? Assume all starting material is converted to product when calculating the theoretical yield.