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PHRM1021-Introductory Pharm Sciences, T2 2025
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Why must the conical flask used for the reaction between the salicylic acid and acetic anhydride be dry?
Which of the chemicals used in this experiment is the most hazardous, requiring long-cuff gloves for its safe handling?
In order to carry out a vacuum filtration, what equipment do you need? Tick all items that are required, but do no tick any non-essential items.
A student carrying out the aspirin synthesis as described in the lab manual started with 1.94 g of salicylic acid and reacted it with 2.5 mL of acetic anhydride (density = 1.082 g/mL) and 5 drops of 18 M sulfuric acid. What is their expected (theoretical) yield of aspirin?
A student carrying out the aspirin synthesis as described in the lab manual started with 1.85 g of salicylic acid and reacted it with 2.50 mL of acetic anhydride (density = 1.082 g/mL) and 5 drops of 18 M sulfuric acid. What are the amounts of salicylic acid and acetic anhydride reacting?
How is the purity of the aspirin assessed in this experiment?
What substance is reacted with salicylic acid in this experiment, to produce aspirin?