Percent recovery is an indication of how much of active ingredient one is able to recover after purification method.
The formula for percent recovery is:
[tex]Percent recovery = \frac{weight after crystallization}{weight of substance used initially}[/tex]
[tex]weight after crystallization = 59.2 g -18.5 g = 40.7 g[/tex]
[tex]weight of substance used initialy = 59.2 g[/tex]
Substituting the values in the above formula:
[tex]Percent recovery = \frac{40.7}{59.2}\times 100[/tex]
[tex]Percent recovery = 68.75[/tex] %
Hence, the maximum percent recovery that can be achieved for the recrystallization of acetanilide from methanol is [tex]68.75[/tex] %.
