Answer Happy

13.199 g of a non-volatile solute is dissolved in 410.0 g of
water.
The solute does not react with water nor dissociate in
solution.
Assume that the resulting solution displays ideal Raoult's law
behaviour.
At 70°C the vapour pressure of the solution is 231.39
torr.
The vapour pressure of pure water at 70°C is 233.70
torr.
Calculate the molar mass of the solute (g/mol).
58.1 g/mol
Question1. Now suppose, instead, that 13.199 g of
a volatile solute is dissolved in 410.0
g of water.
This solute also does not react with water nor dissociate in
solution.
The pure solute displays, at 70°C, a vapour pressure of
23.37 torr.
Again, assume an ideal solution.
If, at 70°C the vapour pressure of this solution is also 231.39
torr.
Calculate the molar mass of this volatile solute.