1.The reduction in chemical potential between an aqueous solution phase and pure water is 100.0 kJ mol1. Assuming that the solution can be treated as ideal, what is water mole fraction of the solution at 298 K?

2.If the solute in the previous question is ethanol, and no other solutes are present, what is the molality of the resultant solution? Give your answer in mol kg1.

3. 0.8 g of toluene are mixed with 8.0 g of benzene. According to Raoults law, the partial pressure of benzene in the vapour would be what fraction of the vapour pressure of the pure benzene phase?