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Unformatted text preview: the solution is lowered by 4.43K. Calculate the molar mass of vitamin K. Kf (camphor) =40.0K/m. 5. How many grams of sucrose must be dissolved in 1555g of water to lower the freezing point to -4.5 o C? . K f = 1.86 o C/m 6. The osmotic pressure of 1.00g of a polymer in 100.mL of solution is 4.07 torr at 25 o C. What is the molar mass of the polymer? 7. Please make sure that you can read/interpret an enthalpy diagram for calculating lattice energy. I didnt put a practice question like this on your practice exam, but I still expect you to be able to calculate the lattice energy for a substance and draw an enthalpy diagram for it....
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- Winter '08