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Aspirin, C9H8O4 , is produced through the following reaction of salicylic acid, C7H6O3, and acetic anhydride, C4H6O3:

C7H6O3(s) + C4H6O3(l) ---> C9H8O4(s) + HC2H3O2(l)

A. What mass of aspirin (kg) could be produced from 75.0 mol of salicylic acid?

B. What mass of acetic anhydride (kg) would be required?

1 answer

Note that 1 mol SA = 1 mol aspirin and
1 mol SA = 1 mol acetic anhydride.

Therefore, 75 mol SA will produce 75 mols aspirin. Then g aspirin = mols x molar mass.

75 mol SA will use 75 mol acetic anhydride; g = mols x molar mass.