1.

Which of the following is correct for pure liquid :A. Molality is independent of density of liquid.B. Molarity depends on density of liquid.C. Molarity = density `xx` molality (where density is in gm/lit)D. All are correct

Answer» Correct Answer - D
(1) `m = ("moles of solute")/("mass of solvent in kg")`
Independent of density as no volume is present
(2) `M = ("moles of solute")/("volume of solution in Lt")`
For pure liquid solvent = solution
so, m depends on density
(3) `M = (n_("solute"))/((m_("sovent"))/(d)) = (n_("solute"))/(m_("solvent")) xx d = m xx d`
`"Molarity" = "Molality" xx d`


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