When 85.1 g of benzamide (C2H2NO) are dissolved in 500. g of a certain mystery liquid X, the freezing point of the solution is 3.4 °C lower than the freezing

point of pure X. On the other hand, when 85.1 g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 5.2 °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 round your answer to 2 significant digits.