Answer:
Yield of reaction is 76.7%
Explanation:
The reaction of salicylic acid with acetic anhydride to produce acetyl salicylic acid is 1:1. That means 1 mole of salicylic acid reacts with 1 mole of acetic anhydride (Acid is catalyst of reaction).
Moles of salicylic acid are:
[tex]5.7g\frac{1mol}{138.121g} = 0.04127 moles[/tex]
And moles of acetic anhydride are:
[tex]9.9mL\frac{1.082g}{mL} \frac{1mol}{102.09g} = 0.105 moles[/tex]
As salicylic acid is limiting reactant, theoretical moles of acetyl salicylic acid are 0.04127mol. That means theoretical mass of acetyl salicylic acid is:
[tex]0.04127moles\frac{180.158g}{1mol} = 7.435g[/tex]
Thus, yield of reaction is:
[tex]\frac{5.7g}{7.435} *100=[/tex] 76.7%
