Consider the reaction below and answer the question below the reaction. A student performed a synthesis of ethyl 4-aminobenzoate (C) as shown the reaction above. The student added 1.20 g of 4-aminobenzoic acid and 12.0 mL of ethanol together in the presence of sulfuric acid. The reaction mixture was heated to reflux for a period of 45 minutes. H₂N OH + CH3CH₂OH 4-aminobenzoic acid MM 137.14 g/m ol A ethanol MM 46.10 g/mol B ethyl 4-aminobenzoate ethanol 4-aminobenzoic acid H+ benzocaine none of the above H₂N Identify the limiting reagent of this reaction. Hint: the density of ethanol is 0.789 g/mL. OCH₂CH3 + H₂O ethyl 4-aminobenzoate MM 165.19 g/mol с
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
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