1.

A solution of solute 's' in benzene boils at 0.126^(@) higher than benzene. The molality of the solution is ( K_(b) for benzene = 2.52Km^(-1)) :

Answer»

2 m
0.05 m
1 m
20 m

Solution :`DeltaT_(B)=K_(b)XX m ` or `m=(DeltaT_(b))/(K_(b))=(0.126)/(2.52)=0.05`.


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