How much amount of NaCl should be added to 600 g of water (ρ=1.00 g / mL ) to decrease the freezing point of water to -0.2°C? \ \ \ \. (The freezing…

How much amount of NaCl should be added to $\displaystyle 600$ g of water $\displaystyle (\rho=1.00 \mathrm{~g} / \mathrm{mL})$ to decrease the freezing point of water to -$\displaystyle 0.2$°C ? \_\_\_\_. (The freezing point depression constant for water = $\displaystyle 2 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$ )