A solution is prepared by dissolving 40.00 g of MgCl2 (f.w. = 95.211 g mol–1), a non-volatile solute, in enough water (m.w. = 18.02 g mol–1) to result in exactly 2 L of solution at 25 °C. Assume the density of the solution is that of pure water (dsolution = 1.000 g mL–1).The ebullioscopic constant (Kb) for water is 0.513 °C m–1.The cryoscopic constant (Kf) for water is 1.86 °C m–1.The vapor pressure of pure water is 0.0313 atm.Determine the freezing point of the solution.

Given, Mass of non-volatile solute, MgCl2 = 40.00 g Molar mass of MgCl2 = 95.211 g/mole Volume of…

Answered: A solution is prepared by dissolving…

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter8: Solutions

Section: Chapter Questions

Problem 8.9EP: A solution is made by dissolving 34.0 g of NaCl in 100 g of H2O at 0C. Based on the data in Table...

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A solution is prepared by dissolving 40.00 g of MgCl₂ (f.w. = 95.211 g mol^–1), a non-volatile solute, in enough water (m.w. = 18.02 g mol^–1) to result in exactly 2 L of solution at 25 °C. Assume the density of the solution is that of pure water (d_solution = 1.000 g mL^–1).

The ebullioscopic constant (K_b) for water is 0.513 °C m^–1.
The cryoscopic constant (K_f) for water is 1.86 °C m^–1.
The vapor pressure of pure water is 0.0313 atm.

Determine the freezing point of the solution.

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