7. Chloroaniline in a sample is determined as the amine picrate. A
0.0265-g sample is reacted with picric acid and diluted to 1 L. The
solution shows an absorbance of 0.368 in a 1-cm cell. What is the
percentage of chloroaniline in the sample. The formula weight of
chloroaniline is 127.6 g/mol.