When 169. g of glycine (C2H5NO2) are dissolved in 1500.g of a certain mystery liquid X, the freezing point of the solution is 2.80C less than the freezing point of pure X Calculate the mass of ammonium chloride (NH4Cl) that must be dissolved in the same mass of X to produce the same depression in freezing point. The van't Hoff factor i=1.74 for ammonium chloride in X. Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of significant digits