N205(g) -> 2N02(g) + 02(g) Rate = k[NOs] k=5.13 104 min 1 Starting with 0.500 M NOs, what will be the concentration of NO2 after the reactions has proceeded for 317 minutes. Note: in solving this problem you have to use both kinetics and stoichiometry. A. 0.425 M B. 0.075 M C. 0.037 M D. 0.850 M E. 0.150 M