BOILING-POINT ELEVATION IN A SOLUTION Description and Specifications for Lab Tenders
BOILING POINT ELEVATION IN A SOLUTION.
BOILING-POINT ELEVATION IN A SOLUTION The boiling point of a solution is always higher than that of pure
solvent. A special apparatus enables to determine how the
difference of temperature (boiling-point elevation) depends on
the concentration of solute.
TRAINING PROGRAM
• Raoult’s law
• Henry’s law
• ebullioscopic constant
• chemical potential
• Gibbs-Helmholtz equation
• concentration ratio
• degree of dissociation
OBJECTIVES
• measuring boiling-point elevation in water versus the
concentration of salt, urea and of hydroquinone
• determining the relationship existing between boiling-point
elevation and number of particles
• determining the molar mass of solute from the ratio
between boiling-point elevation and concentration
COMPONENTS
• apparatus for studying boiling-point elevation
• heating shell for fl asks
• power controller
• glassware for tests
• thermometer