Names:

Calculate the molar mass of an unknown non-electrolyte if 18.54 g of it dissolved in
225.0 g of water lowers the freezing point of the water by 3.12^o C.  The K_f for water is
1.86^oC kg mole^-1

Show the work neatly.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

                                                                                    ANS                                  g mol^-1