How much amount of N a C l should be added to 600 g of water ρ = 1.00 g / m L to decrease the freezing point of water to - 0.2 o C ? ________. (The freezing point depression constant for water = 2 K k g m o l - 1 )

Step-by-step solution

∆ T f = 0.2 ° C ∆ T f = i k f m 0.2 = 2 × 2 × ω 58.5 × 1000 600 ω = 0.2 × 58.5 × 600 1000 × 4 = 1.2 × 58.5 40 = 01.76  g Freezing point depression is the phenomena that describes why adding a solute to a solvent results in the lowering of the freezing point of the solvent.