When 151. g of benzamide (C₂H-NO) are dissolved in 500. g of a certain mystery liquid X, the freezing point of the solution is 2.80 °C less than the freezing point of pure X. Calculate the mass of potassium bromide that must be dissolved in the same mass of X to produce the same depression in freezing point. The van't Hoff factor i = 1.56 for potassium bromide in X. Be sure your answer has a unit symbol, if necessary, and round your answer to 3 significant digits. 0 0 0.0

Calculate the vapor pressure of a solution containing 28.5 g of glycerin (C3H8O3) in 125 mL of water at 30.0 degrees celsius. The vapor pressure of pure water at this temperature is 31.8 torr. Assume that glycerin is not volatile and dissolves molecularly (i.e. it is not ionic) and use a density of 1.00 g/mL for the water.

When 112. g of glycine (C₂H₂NO₂) are dissolved in 1500. g of a certain mystery liquid X, the freezing point of the solution is 5.70 °C less than the freezing point of pure X. Calculate the mass of sodium chloride that must be dissolved in the same mass of X to produce the same depression in freezing point. The van't Hoff factor i = 1.58 for sodium chloride in X. Be sure your answer has a unit symbol, if necessary, and round your answer to 3 significant digits. 10 Olo ロ・ロ

1-A sample of pure t-butyl alcohol weighing 6.22 g was found to have a freezing point of 24.7 °C. When 0.543 g of an unknown compound X was added to the t-butyl alcohol, the mixture had a freezing point of 21.3 °C. Calculate the molar mass of compound X. (Kf = 12.8 °C/molal for t-butyl alcohol.)A sample of pure t-butyl alcohol weighing 6.22 g was found to have a freezing point of 24.7 °C. When 0.543 g of an unknown compound X was added to the t-butyl alcohol, the mixture had a freezing point of 21.3 °C. Calculate the molar mass of compound X. (Kf = 12.8 °C/molal for t-butyl alcohol.)   2-What is the rate law expression for the reaction A + B → C, based on the following data