. How many mL of acetic anhydride (D= 1.082 g/mL) would be needed as starting material to produce 45.0 g of aspirin

Answer 1

I would start with a balanced chem equation. Calculate moles of aspirin from 45g, then use the mole relation in the balanced equation to figure out how much anhydride.

Now in the real world, one has to take in the percent yield as an important factor.