Calculate the molarity and the molality of a solution prepared by dissolving 2.00 g of C2H5OH with 100.0 g of water to give a final volume that is 102mL.When 2.04 g of a substance was dissolved in 7.84 g of solvent, the solution froze at 10.8°C. The pure solvent was found to freeze at 14.3°C. The freezing point depression constant for the solvent is 2.8°C kg/mol. Calculate the molecular weight of the substance.

Answered: Calculate the molarity and the molality…

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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Calculate the molarity and the molality of a solution prepared by dissolving 2.00 g of C₂H₅OH with 100.0 g of water to give a final volume that is 102mL.
When 2.04 g of a substance was dissolved in 7.84 g of solvent, the solution froze at 10.8°C. The pure solvent was found to freeze at 14.3°C. The freezing point depression constant for the solvent is 2.8°C kg/mol. Calculate the molecular weight of the substance.

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