\(20\,\text{mL}\) of \(0.02\,\text{M}\) \(\mathrm{K_2Cr_2O_7}\) solution is used for the titration of \(10\,\text{mL}\) of \(\mathrm{Fe^{2+}}\) solution in the acidic medium. The molarity of \(\mathrm{Fe^{2+}}\) solution is \(\_\_\_\_\_\_\) \(\times10^{-2}\,\text{M}\). (Nearest Integer).
