1.(a)In an organic chemistry lab a student prepared aspirin by reacting salicylic acid and aceticanhydride, while using sulfuric acid as a catalyst. The table below shows data from thisеxperiment.Mass of salicylic acid4.0 gVolume of acetic anhydride 6.0 mLVolume of sulfuric acid0.5 ml.Percentage yield92 %(i) Cakulate the actual mass of aspirin obtained from this experiment.(i) State two methods that can be used to confirm the purity of the product obtained.(b)An experiment was carried out as follows: 1.5766 g of an ammonium salt was placed in a beakerand 60 mL of 1.182 M sodium hydroxide was added. The resulting mixture was heated for aboutan hour and then left to cool to room temperature. The reaction mixture was then titrated withsulfuric acid and required 18.35 ml. of the acid for complete neutralization. Given that thepercentage by mass of ammonium in the salt was 37.5 %, calculate the molarity of the sulfurieacid used in the titration.

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In an organic chemistry lab a student prepared aspirin by reacting salicylic acid and acetic anhydride, while using sulfuric acid as a catalyst. The table below shows data from this experiment. Mass of salicylic acid 4.0g Volme of acetic anhydride 6.0 ml. Volume of sulfuric acid 0.5 ml. Percentage yield 92 % () Cakulate the actual mass of aspirin obtained from this experiment. (i) State two methods that can be used to confirm the purity of the product obtained.

In an organic chemistry lab a student prepared aspirin by reacting salicylic acid and acetic anhydride, while using sulfuric acid as a catalyst. The table below shows data from this experiment. Mass of salicylic acid 4.0g Volme of acetic anhydride 6.0 ml. Volume of sulfuric acid 0.5 ml. Percentage yield 92 % () Cakulate the actual mass of aspirin obtained from this experiment. (i) State two methods that can be used to confirm the purity of the product obtained.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter79: Solubility

Section: Chapter Questions

Problem 1P

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