Molecular mass salicylic acid = 138.118 g/mol

Molecular mass acetic anhydride = 102.09 g/mol

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I got

0.05289 moles of acetic anhydride

0.01448 moles of salicylic acid

Balanced equation:

C7H6O3 + C4H6O3 <---> C9H8O4 + C2H4O2

mole ratio is one to one

Limiting reaction is salicylic acid since it has less moles

So for one mole of salicylic acid used one mole of aspirin is used too. So there are 0.01448 moles of aspirin?

Molecular mass of aspirin = 180.157 g/mol

(180.157 g/mol) (0.01448 mol) = 2.608g of aspirin

Is this correct? Thank You.

2.608g is the theoretical yield of aspirin

#### Top Answer

CALCUTION OF WT. OF ASPRIN BY TEACHER MW OF ASPIN C9H804 Molecular mass salicylic acid = 138.118 g/mol MW ACETIC ANHY C4H60 3... View the full answer

## This question was asked on Nov 14, 2010 and answered on Nov 18, 2010.

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