When 198. g of benzamide (C,H,NO) are dissolved in 550. g of a certain mystery liquid X, the freezing point of the solution is 7.3 °C lower than the freezing
point of pure X. On the other hand, when 198. g of ammonium chloride (NH CI) are dissolved in the same mass of X, the freezing point of the solution is
25.2 °C lower than the freezing point of pure X.
Calculate the van't Hoff factor for ammonium chloride in X. Be sure your answer has a unit symbol, if necessary, and round your answer to 2 significant digits.
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X