83g ethylene glycol is dissolved in 625g water. Find freezing point of ethylene glycol (Given `K_f` = 1.86

83 g of ethylene glycol d issolved in 625 g of water. The freezing point of the solution is ____ K. (Nearest integer)

Ethylene glycol is added to water as an antifreeze. It will

45 g of ethylene glycol (C_(2) H_(6)O_(2)) is mixed with 600 g of water. The freezing point of the solution is (K_(f) for water is 1.86 K kg mol^(-1) )

20 g of a biaryelectrolyte (Molecular mass =100) are dissolved in 500 g of water. The freezing point of the solution is -0.74^(@)C and K_(f)=1.86 K kg mol^(-1) . The degree of ionisation of eletrolyte as :

20 g of a binary electrolyte(mol.wt.= 100 )are dissolved in 500 g of water.The freezing point of the solution is -0.74^(@)CK_(f)=1.86K "molality"^(-1) .the degree of ionization of the electrolyte is