A sample of crude aspirin containing 20.0% salicylic acid is neutralized with NaOH. The structure for aspirin and salicylic acid are shown below. What volume of 0.150 M NaOH would be required to neutralize 560 mg of this sample of crude aspirin?
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Answer:
poison is affected
Explanation:
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Aspirin dissolves easily in NaOH because the carboxylic acid group is deprotonated and negatively charged.
Explanation:
- The reaction used for the synthesis is shown below. In this reaction, excess acetic anhydride (C4H6O3) is added to the measured amount of salicylic acid (C7H6O3) in the presence of the catalyst sulfuric acid (H2SO4).
- The mixture is heated to form acetylsalicylic acid (C9H8O4) and acetic acid (C2H4O2).
- Aspirin (2-ethanoyloxybenzoic acid or acetylsalicylic acid) hydrolyzes to 2-hydroxybenzoic acid and acetic acid.
- The amount of 2hydroxybenzoic acid produced can be determined to d form the intensity of the violet-blue complex it forms with iron(III) ions.
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