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solution is prepared by dissolving 32.0 g urea, (NH2)2CO, molar mass = 60 g/mol), in 150.0 g water. Calculate the boiling point of the solution. Kb of water = 0.51 degrees C-kg/mol

solution is prepared by dissolving 32.0 g urea, (NH2)2CO, molar mass = 60 g/mol), in 150.0 g water. Calculate the boiling point of the solution. Kb of water = 0.51 degrees C-kg/mol

Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter14: Mixtures And Solutions
Section14.3: Factors Affecting Solvation
Problem 42SSC
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A solution is prepared by dissolving 32.0 g urea, (NH2)2CO, molar mass = 60 g/mol), in 150.0 g water. Calculate the boiling point of the solution. Kb of water = 0.51 degrees C-kg/mol

use the given formula

AT f = Kfm solute depression AT, = freezing-point T₁= freezing point of solution freezing point of pure solvent T, <T,° AT₁=T₁-T₁T₁= K₁ = molal freezing-point depression constant (°C-kg/mol) (For water: K,= 1.86 °C-kg/mol) msolute = molality of the solute in the solution
Transcribed Image Text:AT f = Kfm solute depression AT, = freezing-point T₁= freezing point of solution freezing point of pure solvent T, <T,° AT₁=T₁-T₁T₁= K₁ = molal freezing-point depression constant (°C-kg/mol) (For water: K,= 1.86 °C-kg/mol) msolute = molality of the solute in the solution
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