(Solved): Need help please. Thanks for your help  PREPARATION OF ASPIRIN Data Sheet A. Preparation and is ...

PREPARATION OF ASPIRIN Data Sheet A. Preparation and isolation of acetylsalicylic acid Note: Be sure to zero (tare) the balance with a clean \( 50-\mathrm{mL} \) Erlenmeyer flask on the balance before adding the salicylic acid to the flask and weighing. Indicate the mass of your salicylic acid sample below. Mass of salicylic acid \( 2.5 \mathrm{~g} \) Volume of acetic anhydride \( 5 \mathrm{~mL} \) Volume of \( 85 \% \) phosphoric acid 5 drops Heating Heating time start: \( \quad 10: 20 \) a.m. Heating time stop: \( 10: 35 \) a.m. Volume of distilled water added to the reaction mixture \( 20 \mathrm{~mL} \) Volume of water used to wash the aspirin \( 50 \mathrm{~mL} \) Mass of watch glass and aspirin \( 148.12 \mathrm{q} \) Mass of watch glass \( 145.98 \mathrm{q} \) Mass of aspirin a) How many grams of aspirin did you collected in this experiment? b. How many moles of aspirin did you collected during this experiment? c. What is your percent yleld of aspirin in this experiment?