6- Which one of the following has a higher boiling point? (Give reason). 0.01M Ca(NO3)2 or 0.1M Ca(NO3)2. 7- What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6) in 100g of HO? Kf for water is -1.86C/m. 8- Calculate the freezing point of a solution made from 22.0 g of octane (C8H18) dissolved in 148.0 g of benzene. Benzene freezes at 5.50C and its Kf value is -5.12C/m. 9- What is the freezing point of a solution prepared from 50.0 g ethylene glycol (C2H6O2) and 85.0 g HO? Kf of water is -1.86C/m. 10- What is the molar mass of toluene if 0.85 g of toluene depresses the freezing point of 100g of benzene by 0.47C? Kf of benzene is -5.12C/m.