When 132. g of alanine (CH.NO.) are dissolved in 1200 g of a certain mystery liquid X, the freezing point of the solution is 8.4 "C lower than the freezing point of pure X On the other hand, when 132. g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 10.5 C lower than the freezing point of pure X Calculate the van't Hoff factor for potassium bromide in X. Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of Significant digits 0