Reaction of x g of Sn with HCl quantitatively produced a salt. Entire amount of the salt reacted with yg of nitrobenzene in the presence of required amount of HCl to produce 1.29 g of an organic salt (quantitatively). (Use Molar masses (in $\mathrm{g} \mathrm{mol}^{-1}$ ) of $\mathrm{H}, \mathrm{C}, \mathrm{N}, \mathrm{O}, \mathrm{Cl}$ and Sn as $1,12,14,16,35$ and 119 , respectively).The value of $y$ is $\_\_\_\_$ .