10.0 mmol of sucrose (M = 342.3 g mol-1) are fully dissolved in 100.0 g of solvent: water and carbon tetrachloride respectively. The solutions will be assessed with freezing point depression and osmotic pressure measurements. The thermometer covers the range from 200 – 320 K to 0.1 K. The pressure gauge covers the range from 0 – 500 kPa to 1 kPa. Solvent M/gmol-1 plg dm-1 Kil K kg mol-1 H20 T:/K 18.0 997.0 1.86 273.2 153.8 1592 30.0 250.3 (a) Calculate the measured freezing point depression of each solution.
10.0 mmol of sucrose (M = 342.3 g mol-1) are fully dissolved in 100.0 g of solvent: water and carbon tetrachloride respectively. The solutions will be assessed with freezing point depression and osmotic pressure measurements. The thermometer covers the range from 200 – 320 K to 0.1 K. The pressure gauge covers the range from 0 – 500 kPa to 1 kPa. Solvent M/gmol-1 plg dm-1 Kil K kg mol-1 H20 T:/K 18.0 997.0 1.86 273.2 153.8 1592 30.0 250.3 (a) Calculate the measured freezing point depression of each solution.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter13: Solutions And Their Behavior
Section: Chapter Questions
Problem 52PS: The dispersed phase of a certain colloidal dispersion consists of spheres of diameter 1.0 102 nm....
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Calculate the measured osmotic pressure of each solution at 298 K.
The exact molar mass of a solid substance that is soluble in water and carbon
tetrachloride needs to be determined. Its molar mass is in the range of 100 –
400 g mol−1. Based on your calculations in (a) and (b) advise of the most
appropriate method to accurately determine its molar mass.
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