The correct expression relating molality (m), molarity (M), density of solution (d) and molar mass `(M_(2))` of solute is :
The correct expression relating molality (m), molarity (M), density of solution (d) and molar mass `(M_(2))` of solute is :
A. `m = (M)/(d+M M_(B))`
B. `m=(M)/(d-M M_(B))`
C. `m=(d+M M_(B))/(M)`
D. `m=(d-M M_(B))/(M)`
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