Q:
      
      
         
            
Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at –6°C will be: (Kf  for water = 1.86 Kg/mol and molar mass of ethylene glycol = 62 kg/mol)
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: C) 804.32 g         
         
Explanation:  
for ethylene glycol in aq. solution
 
=> w = 800 g
 
So, the weight of solute should be more than 800 g.
       
      
      
      
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