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Land Burger Apparatus

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Model No: AGN-1762
It is a specialized glassware setup used to determine the molecular weight (molar mass) of a solute by the boiling point elevation method. This classical physical chemistry apparatus measures how the boiling point of a solvent increases when a non-volatile solute is added, from which the molar mass of the solute can be calculated. The modification by Walker and Lunsden improves thermal efficiency, accuracy, and reproducibility by refining the design of the boiling chamber and cooling system.
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Technical Specifications

  • Constructed from high-quality borosilicate glass, ensuring excellent thermal resistance and chemical durability
  • Designed specifically for the boiling point elevation method of molecular weight determination
  • Modified by Walker and Lunsden to enhance accuracy and reduce heat loss during experimentation
  • Includes:
    • Boiling tube (with solvent and solute chamber)
    • Thermometer well for precise temperature monitoring
    • Cooling jacket or condenser (in modified versions) to minimize solvent loss
    • Capillary inlet for controlled addition of solute or solvent
  • Ensures uniform and controlled heating, often using a micro-burner or water/oil bath
  • Graduated and calibrated parts allow for precise volume and temperature measurements
  • Suitable for use in physical chemistry labs, teaching institutions, and research facilities
  • Can determine the molecular weights of non-volatile solutes in volatile solvents
  • Ideal for academic demonstrations of colligative properties and fundamental thermodynamics

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