A solution is prepared by dissolving 2.5g of a non-volatile solute in 100g of water. The vapor pressure of the solution is found to be 22.87 Torr at . If the vapor pressure of pure water is 23.76 Torr at the same temperature, what is the molar mass of the solute (in g/mol)?
60
120
30
90
Related Questions
Which technique is employed to separate two miscible liquids with a significant difference in their boiling points?
Simple distillation
Fractional distillation
Chromatography
Sublimation
Which of the following methods is NOT typically used for concentrating a dilute ore?
Froth flotation
Magnetic separation
Gravity separation
Distillation
A binary liquid mixture of components A and B exhibits an azeotrope at a specific composition. Which of the following statements is ALWAYS true about this azeotropic mixture?
The composition of the vapor phase is identical to the composition of the liquid phase.
The boiling point of the azeotrope is the average of the boiling points of pure A and B.
The azeotrope can be separated into pure A and B by fractional distillation.
The azeotrope always shows a positive deviation from Raoult's Law.
