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an aqueous solution is 0.4742 molal in calcium chloride. it has a freezing point of -2.345...
An aqueous solution containing sodium chloride has a freezing point that is -1.28 degrees C at 1.0 atm. What is the % by mass of NaCL in this solution? HINT: The Kf for water = 1.86 degrees C kg/mol
Sodium chloride (NaCl) is commonly used to melt ice on roads during the winter. Calcium chloride (CaCl2) is sometimes used for this purpose too. Let us compare the effectiveness of equal masses of these two compounds in lowering the freezing point of water by calculating the freezing point depression of solutions containing 230. g of each salt in 1.00 kg of water. (An advantage of CaCl2 is that it acts more quickly because it is hygroscopic, that is, it absorbs...
The experimentally measured freezing point of a 1.50 m aqueous solution of CaCl2 is -6.70°C. The freezing point depression constant for water is Kf = 1.86°C/m. Assume the freezing point of pure water is 0.00°C. The experimentally measured freezing point of a 1.50 m aqueous solution of CaCl2 is -6.70°C. The freezing point depression constant for water is Kf = 1.86°C/m. Assume the freezing point of pure water is 0.00°C. What is the predicted freezing point if there were no...
What is the expected freezing point depression and freezing point of a 0.20m solution of the strong electrolyte calcium chloride, CaCl2? Kf = 1.86°C/m
An aqueous solution of a nonvolatile solute has a boiling point of 102.45 degrees Celsius. Knowing that for water, Kfp = 1.86 degrees Celsius m^-1 and Kbp= 0.51 degrees Celsius m^-1. What is the molality of the solution? and what is the freezing point of the solution? Please show work.
QUESTION 11 Determine the molal concentration of a sugar solution in water that has a freezing point of-2.1°C. Kf 1.86°C/m for water Oa.-1.13 m b.-3.91 m c. 1.13 m d. 0.113 m e. 3.91 m
a Calculate the freezing point and the boiling point of each of the following aqueous solutions. (Assume complete dissociation. Assume that water freezes at 0.00°C and boils at 100.000ºC.) 0.047 m MgCl2 Kr=-1.86 °C/molal Kb =0.51 °C/molal Tf= °C Tb = °C Submit b Calculate the freezing point and the boiling point of each of the following aqueous solutions. (Assume complete dissociation. Assume that water freezes at 0.00°C and boils at 100.000°C.) 0.047 m FeCl3 Kf=-1.86 °C/molal Kb =0.51 °C/molal...
What is the freezing point of a 4.19 molal aqueous solution of ethylene glycol, a nonvolatile, nonionizing material? Freezing point of water is 0.00 ºC.
Which solute produces the lowest freezing point in a 0.25 m aqueous solution? A. Calcium Chloride B.Potassium Permanganate C. Copper (II) Sulfate D. Ethanol E. Potassium iodide
What is the normal boiling point of an aqueous solution that has a freezing point of 1.04 degree C. K_f for water 1.86 degree C/m.