$\mathrm{KClO}_3+6 \mathrm{FeSO}_4+3 \mathrm{H}_2 \mathrm{SO}_4 \rightarrow \mathrm{KCl}+3 \mathrm{Fe}_2\left(\mathrm{SO}_4\right)_3+3 \mathrm{H}_2 \mathrm{O}$ The above reaction was studied at 300 K by monitoring the concentration of $\mathrm{FeSO}_4$ in which initial concentration was 10 M and after half an hour became 8.8 M . The rate of production of $\mathrm{Fe}_2\left(\mathrm{SO}_4\right)_3$ is $\times 10^{-6} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$. (Nearest Integer)