15 mL of aqueous solution of Fe^2+ in acidic medium completely reacted with 20 mL of 0.03 M aqueous Cr_2 O_7^2-. The molarity of the Fe^2+ solution…

$\displaystyle 15$ mL of aqueous solution of $\displaystyle \mathrm{Fe}^{2+}$ in acidic medium completely reacted with $\displaystyle 20$ mL of $\displaystyle 0.03$ M aqueous $\displaystyle \mathrm{Cr}_2 \mathrm{O}_7^{2-}$. The molarity of the $\displaystyle \mathrm{Fe}^{2+}$ solution is \_\_\_\_ $\displaystyle \times 10^{-2} \mathrm{M}$. (Round off to the Nearest Integer).