Question

Fill in the table and answer the questions below

Name Pre-lab Questions (10 Marks) 1. Fill the table below: Materials Acetic anhydride H:SO, Salicylic acid Amount 12mL 0.25 mL 3mL Measured Molecular weight (g/mol) Moles 2. Identify the limiting reagent in this reaction? 3. Calculate the theoretical mass yield of Aspirin product? Show your work for full credit. [4] 4. What is the literature melting point of Aspirin (acetyl salicylic acid)?

Answer 1

Arctic | Salicylic acid madevich Annydrink amount 2gm 025 ml Molecular who Glamo) 138. glmal RSamel 102 Ilmar dy moles cut density lexume 1 mul امام miut la 1.84 0.25 Gode 3 me (02 0.0144 - JURUG = 0.0317 1) limiting bergent ? Scochin , oleh o troligt home cada on Salicylic acid Acetic anny and Aspirin generelley Chemical reaction will continue as long as there are reactants present. As soon as a reactant is consumed the reaction will stop, no matter of how much of the other reactants remaining.

The voctunt that runs out first is called the biniting reagent. . The term limiting reagent sctors to the fact that the amount of products that can be produced is dependant upon that Chernical arus it limits the reaction. The reactants that are not entirely Consumed are referred to as excess roogent here c the limiting reagent is Salicylic acid 2) Since on dinc amount amount of limiting of Aspirin product formed is depende reagent taken. formed depend on amount - at Salicylic acid turen since 0.0144 moler of Sacityle taken o olum moles in an of Aspirin Asnirin formation tomation dulces til Mace it out Team takes place) we know that moke Asnirin = 180.15 gl male 001444 0.0144 180-15 -2.54 I am ot Aspirin formation takes place literature melting point of Aspirin 136 °C