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The chemical reaction of 100 g of salicylic acid, C7H6O3, with excess acetic
anhydride produces 50.0 g of aspirin, C9H8O4, according to the equation. What is
the percentage yield for the reaction shown below? Please show your work.
C7H6O3 + C4H6O3 → C9H8O4 + C2H4O2

  • Chemistry -

    Convert 100 g salicylic acid (SA) to moles. moles = grams/molar mass

    Using the coefficients in the balanced equation, convert moles SA to moles of the product. (The ratio is 1:1).

    Now convert moles aspirin to grams aspirin. grams = moles x molar mass. This is the theoretical yield.

    % yield = (actual yield/theoretical yield)*100
    actual yield is 50.0 g from the problem. Theoretical yield is from your calculations.

  • Chemistry -

    thank you! :)

  • Chemistry -


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