ertain liquid X has a normal boiling point of 129.20 °C and a boiling point elevation constant K, = 0.86 °C kg-mol . Calculate the boiling point of a solution de of 33.3g of iron(III) nitrate (Fe(NO,)) dissolved in 250. g of X.

A solution containing 0.10 mol of naphthalene (nonvolatile) and 0.90 mol of benzene is cooled until some solid benzene freezes out. The solution is then decanted off from the solid and the decanted solution is warmed to 80°C, at which temperature the vapor pressure above the solution is found to be 670 torr. The normal freezing and boiling points of pure benzene are 5.5 °C and 80°C, respectively and the molar enthalpy of fusion of benzene ∆fus?=10.67 kJ/mol Assume the solution is ideal. a) Calculate the temperature to which the solution was cooled originally. b) Calculate the number of moles of benzene that froze out.

A certain liquid x has a normal freezing point of 1.30 °C and a freezing point depression constant K,- 3.30 °C-kg'mol!. A solution is prepared by dissolving some glycine (c,H,NO,) in 850. g of x. This solution freezes at - 2.2 °C. Calculate the mass of c,H,NO, that was dissolved. Be sure your answer is rounded to the correct number of significiant digits. ?

Consider a solution of 0.877 molal (m) ethanol in water. Considering the normal boiling point for water is 100 °C, and the boiling pont elevation constant for water is 0.51 °C/m, what is the boiling point of this mixure? Report anser two places past the decimal point.