Question

Determine the amount of NaCl to be dissolved
in 600 g H2O to decrease the freezing point by
0.2oC. (in g) [Kf of H2O = 2 Km-1 density of H2O = 1 g/mL]
(1) 1.76 (2) 2.49 (3) 0.89 (4) 9.42

Answer 1

Explanation:

Depression in freezing point is

change in temperature = kf ×m×i