Q. The expression relating molarity $(M)$ of a solution with its molality $(m)$ is
(where $d =$ density, $M_{B}$ mol. wt. of solute)

1976 252 Solutions Report Error

A

$m = \frac{1000 M}{1000 d + M M _{B}}$

24%

B

$m = \frac{1000 M}{1000 d - M M _{B}}$

60%

C

$m = \frac{1000 d + M M _{B}}{1000 M}$

12%

D

$m = \frac{1000 d - M M _{B}}{1000 M}$

4%

Solution:

$m = \frac{1000 M}{1000 d - M M _{B}}$