What is the boiling point of a solution that contains 3 moles of #KBr# in 2000 g of water? (#K_b# = 0.512 C/m; molar mass of water = 18 g)?
1 Answer
Apr 20, 2018
Explanation:
When a solute is added in a solvent the boiling of solvent is elevated.
This elevation in boiling point (
#Δ"T" = i"K"_b"m"#
Where
#i =# Van’t Hoff factor (#2# for#"KBr"# )#"K"_b =# Boiling point constant (#"0.512 °C/molal"# for water)#"m ="# Molality of solution#= "Moles of solute"/"Mass of solvent (in kg)"#
Here solute is glucose & solvent is water.
Boiling point of pure water is