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
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
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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