The balanced reaction is:
C6H5NH2+C6H5N2+Cl−→C6H5N=N−C6H5(Aniline yellow).
Given:
Molar mass of aniline=93g/mol,Given mass=279g.
Moles of aniline:
n=93279=3mol.
Mass of aniline yellow:
Molar mass of product=197g/mol.
Mass=3⋅197=591g.
Final Answer:
591g.