Complex sentence: Here "K f" is the cryoscopic constant (equal to 1.86 ° C kg/mol for the freezing point of water), "i" is the van' t Hoff factor, and "m" the molality.
Split into simpler sentences: Here "K f" is the cryoscopic constant, equal to 1.86 ° C kg/mol for the freezing point of water. Again "i" is the van' t Hoff factor and m the molality.