Question

i will give free points and follow you what is the normal boiling point of an aqueous solution non volatile non electrolyte whose freezing point is -2.48c (kf=1.86,kb=0.51)

Answer 1

As we know,

ΔT  

b

​  

=k  

b

​  

m;0.15=0.512×m

m=0.292;ΔT  

f

​  

=k  

f

​  

m  

′

 

m  

′

=m/2;T  

1

​  

−T  

0

​  

=1.86×  

2

0.292

​  

=0.27  

0

C

T  

1

​  

=0−0.27=−0.27  

∘

C