The freezing point of t-butanol is 25.50°C and is 9.1°C kg/mol. Usually t-butanol absorbs water on exposure to air. If the freezing point of a sample which contains 12.4 g of t-butanol is 24.56°C, how many grams of water are present in the sample?

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point