Fischer Esterfication of Benzocaine from p-aminobenzoic acid
1. Is p-aminobenzoic acid the limiting reagent?
2. If so, is it a 1:1 ratio for benzocaine? How do I determine the ratio?
3. If it is 1:1 ratio, would my theoretical yield be 0.54g of benzocaine?
(If I started with 3.31x10-3 moles of PABA then I should get 3.31x10-3 moles of benzocaine, which is 0.54g)
Info about reagents used:
p-aminobenzoic acid
Amt used: 0.50g
Molecular weight: 137 g/mol
Moles: 3.31x10-3
Benzocaine
Amt retrieved: 0.72g
Molecular weight: 165 g/mol
Moles: 4.36x10-3
Other Reagents
Etoh (6.5mL)
H2SO4 (0.5ml)
Sodium Carbonate 2M (approx 7mL)