Which of the following is not a colligative property? osmotic pressure vapor pre

Question

Which of the following is not a colligative property? osmotic pressure vapor pressure ra g boiling point elevation freezing point depression All of the above are colligative properties Sucrose is a nonvolatile, nonionizing solute in water. Determine the vapor pressure lowering, at 27 degree C, of a solution of 75.0 grams of sucrose, C_12H_22O_11, dissolved in 180. g of water. The vapor pressure of pure water at 27 degree C is 26.7 torr. Assume the solution is ideal. 0.585 torr 0.058 torr 0.572 torr 5.62 torr 0.548 torr If 4.27 grams of sucrose, C_12H_22_O_11, are dissolves in 15.2 grams of water, what will be the boiling point of the resulting solution? K_b for water = 0.512 degree C/m. 101.64 degree C 100.42 degree C 99.626 degree C 100.73 degree C 101.42 degree C Calculate the freezing point of a solution that contains 8.0 g of sucrose (C_12H_22O_11) in 100. g of H_2O. K_1 for H_2O = 1.86 degree C/m. - 0.044 degree C - 0.22 degree C - 0.39 degree C - 0.44 degree C 0.04 degree C The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL Water is -5.4 degree C. What is the molecular weight of the compound? K_t = 1.86 degree C/m for water. 121 g/mol 2.78 g/mol 34.4 g/mol 41.2 g/mol 53.8 g/mol To increase the solubility of a solid in a liquid solvent, the solvent-solvent interactions should be____and the solute-solute interactions should be____. strong; weak weak; weak strong; strong weak; strong of a solute in a solvent the solute-solute interactions should be

Explanation / Answer

7) Colligative properties are,

                                       Relative lowering in vapor pressure of solvent

                                       Osmotic pressure

                                       Elevation in the boiling point of solvent

                                       Depression in the freezing point of solvent

Thus, vapor pressure rising is not one of the colligative properties.

Thus, the correct option is 'b'

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