22: Preparation of Aspirin Page 115 Questions 1. Explain the differences in the purity of the three samples of aspirin t

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22 Preparation Of Aspirin Page 115 Questions 1 Explain The Differences In The Purity Of The Three Samples Of Aspirin T 1 (113.7 KiB) Viewed 21 times

22: Preparation of Aspirin Page 115 Questions 1. Explain the differences in the purity of the three samples of aspirin tested. 2. Despite the fact that the acidic phenolic group has been replaced with the acetate group in aspirin, some people still have problems with aspirin irritating their stomach lining. Why? 3. Bufferin" is aspirin mixed with MgCO3. What is the purpose of the magnesium carbonate in the formulation? 4. A student prepares aspirin and finds her yield is greater than 100%. Assuming all her weighings and other measurements were correct what would cause this to happen? 5. You find an old bottle of aspirin whose shelf life has expired. Assuming you have a bad headache, you have no other access to fresh aspirin, and you have a strong stomach can you expect to get relief from this outdated aspirin? Explain your reasoning. 6. Despite the fact that almost all physicians no longer recommend that children not be given aspirin because of fears of triggering Reye's syndrome, 'baby' aspirin sales have remained strong. Suggest a reason.