Answer:
85.105 is the percent recovery if you isolated 386 mg of acetylsalicylic acid in this experiment.
Explanation:
Number of grains of acetylsalicylic acid = 7 grains
(1 grains = 64.7089 mg)
7 grains = 7 × 64.7089 mg = 453.5923 mg
Total mass of acetylsalicylic acid = 453.5923 mg
Total mass of tablet = M = 516 mg
Mass of acetylsalicylic acid recovered = 386 mg
The percent recovery of acetylsalicylic acid recovered:
[tex]=\frac{\text{final mass of substance}}{\text{Initial mass of substance}}\times 100[/tex]
[tex]=\frac{386 mg}{453.5923 mg}\times 100=85.10 \%[/tex]
85.105 is the percent recovery if you isolated 386 mg of acetylsalicylic acid in this experiment.
