Asprin Lab Write Up

Asprin Lab Write Up - Name: Robbie Grove TA: Fang Liu Data...

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Data Sheet Rubric - Synthesis Data and Results – 14 pts: Complete the tables below. Table 1. Synthesis and Recrystallization of Aspirin Trial 1 Mass of Salicylic Acid (g) 2.003 g Volume of Acetic Anhydride (mL) 5.0 mL Theoretical Yield of Aspirin (g) 2.61 g Mass of Crude Aspirin (g) 3.23 g % yield of Crude Aspirin 129% Mass of Recrystallized Aspirin (g) 1.914 g % yield of Recrystallized Aspirin 73.3% Table 2. Purity Tests of Aspirin Samples Crude Product Recrystallized Product Initial Mass of Aspirin Sample (g) 3.23 g 1.91 g Absorbance of Aspirin Sample .90 .264 Concentration of Salicylic Acid in Sample (M) 4.7 x 10 -4 M 1.03 x 10 -4 M Moles of Salicylic Acid in Sample 2.4 x 10 -5 moles 5.17 x 10 -6 moles Mass of Salicylic Acid in Sample (g) 3.2 x 10 -3 grams 7.14 x 10 -4 grams Mass of Aspirin in Sample (g) 3.2 grams 1.91 grams Percent Aspirin in Sample 99% 99.9% **Trendline from Standardization Plot: y = 1719.8x + 0.0861 Calculations – 3 pts Name: Robbie Grove TA: Fang Liu
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This note was uploaded on 01/12/2011 for the course CHEM 101 taught by Professor Fitts during the Spring '08 term at UPenn.

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Asprin Lab Write Up - Name: Robbie Grove TA: Fang Liu Data...

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