have to be eaten to ingest 3.9x10 gramS 5. A solution is prepared by dissolving 3.86 grams of C2H5OH in 325 grams of nitrobenzene. What is the freezing point of the solution if the freezing point of nitrobenzene is 5.67°C? Kf = 8.10°C/m. 6. A solution made by dissolving 2.58 grams of an unknown material in 250 grams of nitrobenzene freezes at 5.01°C. What is the molecular weight of the unknown substance? Use freezing point and constant from question #5. 7. Calculate the boiling point of an aqueous solution containing 0.736 moles of MgCl2 in 4250 grams of water if Kb is 0.510°C/m. 8. A solution of 0.750 grams of a nonelectrolyte in 40.0 grams of CCI4 boils at 78.6°C. Calculate the molecular weight of the solute if the boiling point constant for CCI4 is 5.02°C/m and the boiling point of the pure solvent is 76.8°C. The Great Salt Lake in Utah contains about 13.6 grams of NaCl per 100 fraezinn noint of the lake if the constant

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