Question

define moulor mass of solute from bolinig point elevation

Answer 1

The elevation in the boiling point is given by the expression ΔT

b

=K

b

⋅m.....(1)

The molality is given by the expression m=

M

2

⋅W

1

W

2

......(2)

Substitute equation (2) in equation (1)

ΔT

b

=K

b

⋅

M

2

⋅W

1

W

2

Hence, the expression for the molar mass of the solute is

M

2

=

ΔT

b

⋅W

1

K

b

⋅W

2