The gas phase decomposition of sulfuryl chloride at 600 K

SO2Cl2(g) --> SO2(g) + Cl2(g)

is first order in SO2Cl2 with a rate constant of 2.80 x10^-3 min^-1

If the initial concentration of SO2Cl2 is 0.00478 M, the concentration of SO2Cl2 will be ___ M after 515 min have passed.