Benzoylation of aniline:
C6H5NH2+C6H5COCl→C6H5CONHC6H5+HCl
Molar mass of aniline:
M=6(12)+7(1)+14=93 g/mol
Moles of aniline:
n=935.8=0.0624 mol
Molar mass of benzanilide (C13H11NO):
M=13(12)+11(1)+14+16=197 g/mol
Theoretical mass of benzanilide:
mtheoretical=0.0624×197=12.29 g
Actual mass with 82% yield:
mactual=12.29×0.82=10.08≈10 g