Testing Aspirin Products 3. Purity compared to Samples Tested 1. pH 2. Color wit

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Testing Aspirin Products 3. Purity compared to Samples Tested 1. pH 2. Color with sample reference FeCl 1.0.15% salicylic acid Dark Purple reference sample) 2. commercial aspirin brand 3. buffered aspirin 4. aspirin from Part A Dark Dark Questions and Problems B. Q3 explanation for any differences in the pH values in the samples from Part Give an How does the pH of buffered aspirin product compare to the pH of the nonbuffered aspirin product? Copyright 2014 Pearson Education, Inc. over-th the in present are

Explanation / Answer

Purity of aspirin

3. the pH of aspirin samples collected from various source are different as aspirin undergoes deacylation to form salicylic acid which changes the pH of the system.

4. the non-buffered aspirin stays in an unprootonated state with very low pH whereas, the buffered aspirin undergoes deprotonation mildly to give a higher pH value.

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