Find the mass of glycol required to run a car at a hill station having having temperature -10 degre celcius and radiator of car can accomadate 5L of liquid. Kf for water is 1.86 K kg per mol and molar mass of glycol is 62 gper mol

The solution is as follows:

      T = Kf . m   m = TKf= 101.86=5.38  m = number of moles of solutemass of solvent in g×1005.38 = n5 ×1000                                   (density of water is 1)5.38 = wM×5×1000                  (M= 62 g/mol) w = 0.86 g

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