What is the relation between molality $(m)$ of the solution and molar mass $(M_2)$ of the solute,where $W_2$ is the mass of solute in grams and $W_1$ is the mass of solvent in grams?

  • A
    $m = \frac{M_2 \times W_2}{1000 \times W_1}$
  • B
    $m = \frac{1000 \times W_2}{M_2 \times W_1}$
  • C
    $m = \frac{1000 \times W_1}{M_2 \times W_2}$
  • D
    $m = \frac{M_2 \times W_1}{1000 \times W_2}$

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