What is the relation between molarity and molality? [closed]








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Is the following equation correct:


$$m = \frac{1000 \times M}{M \times M\_b - 1000 \times d},$$


where $M$ - molarity, $m$ - molality, $d$ -density of solution, $M\_b$ - molar mass of solute?




$$m = \frac{M}{\rho - (M \times wt. of solute)}$$


$m=$molality


$M=$Molarity


$\rho=$density


all quantities in S.I. units


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