Question

0.31 g camphor (Molar mass 154.3) when added to 20g chloroform raised the boiling point of the solvent by 0.399 K. Calculate molar elevation constant of chloroform.​

Answer 1

Answer:

K

b

=3.88

o

C/m

W

Camphor

=0.3 g & Wt

Chloroform

=25.2

ΔT

b

=0.299

o

C

Now.

ΔT

b

=K

b

m

0.299=3.88×

M.W

Camphor

×25.2

0.3

×1000

M.W

Camphor

=

0.299×25.2

3.88×300

=154.5 g