Calculate the theoretical mass of 1-bromo-3-chloro-5-iodobenzene starting from 5 g of aniline.?

The molecular formula of aniline : C₆H₇N
The molecular formula of : C₆H₃ClBrI

Molar mass of C₆H₇N = 12×6 + 1×7 + 14 = 93 g/mol
Molar mass of C₆H₃ClBrI = 12×6 + 1×3 + 35.5 + 79.9 + 126.9 = 317.3 g/mol

Theoretically, 1 mole of C₆H₇N produces 1 mole of C₆H₃ClBrI.

No. of moles of C₆H₇N reacted = 5/93 = 0.0538 mol
No. of moles of C₆H₃ClBrI formed theoretically = 0.0538 mol
Theoretical mass of C₆H₃ClBrI formed = 317.3 × 0.0538 = 17.1 g