mass of salicylic acid = 0.14g
mass of filter paper= 0.44g
mass of impure ASA + filter paper = 0.56 g
mass of prepared impure ASA = 0.12g
expected mass of ASA = 0.18g
expected melting point of standard ASA = 136.1*C
melting point of prepared ASA (133~136.4*C)
melting point of standard ASA (139.2~142.7*C)
Absorbance readings
Standard A: 1.686
Standard B: 1.351
Standard C: 1.072
Standard D: 0.695
Standard E:0.370
Prepared ASA: 0.902
1. a standard "bayer aspirin" tablet contain 325 mg of acetylsalicylic acid by weight. if the absorbance of this commercial tablet was measured to be 2.61, is the claim made by the drug company accurate? explain the answer and show your work.
2. write a reaction table for the production of ASA
3. calculate the percent purity of ASA. show calculations, including units.
4. calculate the percentage yield of PURE ASA.