9.537 g of a non-volatile solute is dissolved in 220.0 g ofwater. Â
The solute does not react with water nor dissociate insolution. Â
Assume that the resulting solution displays ideal Raoult's lawbehaviour. Â
At 25°C the vapour pressure of the solution is 23.498torr. Â
The vapour pressure of pure water at 25°C is 23.756torr. Â
Calculate the molar mass of the solute (g/mol).
71.1 g/mol
Now suppose, instead, that 9.537 g of a volatilesolute is dissolved in 220.0 g of water. Â
This solute also does not react with water nor dissociate insolution. Â
The pure solute displays, at 25°C, a vapour pressure of 2.376torr. Â
Again, assume an ideal solution. Â
If, at 25°C the vapour pressure of this solution is also 23.498torr. Â
Calculate the molar mass of this volatile solute.
