Mass of aspirin made. -Transfer 2001 g aspirin to a 125 mL erlenmeyer add 10mL NaOH heat mix to a gentle boil should turn blue and darker as heating. The percentage yield shows how much product is obtained compared to the maximum possible mass.
Data given Mass of salicylic acid 303 grams Volume of acetic anhydride 361 mL Density of acetic anhydride 108 gcm³ Step 2.
0027 mol salicylic acid X 13812 g 372g mol. Assume 296g of salicylic acid was obtained experimentally. Change the grams to moles for salicylic acid138 g of salicylic acid 1 moleSo 100 g 100 138 mole 0. We do this by dividing the actual yield of aspirin 353 g by the theoretical.