Benzyl Amine is most basic due to localised lone pair. 
Mole of benzyl Amine ⇒1071=0.00934 mole 1 Mole of Benzyl amine consumed 1 mole of HCl So, Mole of HCl consumed →0.00934 mole Mass of HCl consumed →0.00934× molar mass of HCl $\begin{aligned}
& =0.00934 \times 36.5 \
& =0.341 \mathrm{gm} \
& =341 \mathrm{mg}
\end{aligned}$
