1.

The boiling point of a water containing non-valatile solute is 101.04 ^(@)C of 2 molal solution, the ebullioscopic constant of water is

Answer»

0.52 K . Kg `"mol"^(-1)`
1.04 K . Kg `"mol"^_1)`
10.4K . Kg `"mol"^(-1)`
5.2 k . Kg `"mol"^(-1)`

SOLUTION :`T = 101.04^(@) C = 374.04 K`
`T^(@) = 100^(@)C = 373 K, m=2 "MOLAL"`
`:. Delta T_(b) = K_(b) XX m`
`K_(b) = (Delta T_(b))/m = (374.04-373)/2=1.01/2=0.52` K. Kg `"mol"^(-1)`


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