When a non-volatile solute is added to a volatile solvent, it causes an increase in the boiling point of the solvent. This is one of the four colligative properties and is known as the boiling point elevation.
Boiling point elevation is calculated using this formula:
In this equation:
i = Van’t Hoff factor
Kb = ebullioscopic (boiling point elevation) constant for water = 0.512 oC/m
m = molality of solution
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