$**$Previously solved is not correct$**$

Given the information and following diagram, find the concentrations $C_1,C_2,$ and $C_3.$

$M_1=200m\frac{g}{s},k=0\mathrm{.}01s^{-1}$

$M_3=400m\frac{g}{s},V_1=5000m^3$

$Q_{12}=90\frac{m^3}{s},V_2=1000m^3$

$13=40\frac{m^3}{s},V_3=1000m^3$

$Q_{21}=50\frac{m^3}{s},$

$Q_{23}=60\frac{m^3}{s},$

$Q_{3\text{o}\text{u}\text{t}}=120\frac{m^3}{s},$