molality


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Related to molality: normality, mole fraction, Freezing point depression

molality

 [mo-lal´ĭ-te]
the number of moles of a solute per kilogram of solvent. See also molarity.

mo·lal·i·ty (m),

(mō-lal'i-tē),
Moles of solute per kilogram of solvent; the molarity is equal to mρ/(ltmM), where m is the molality, ρ is the density of the solution, and M is the molar mass of the solute. Compare: molarity.

molality

/mo·lal·i·ty/ (mo-lal´it-e) the number of moles of a solute per kilogram of pure solvent. Cf. molarity.

molality

[mōlal′itē]
Etymology: L, moles, mass
the number of moles of solute per kilogram of water or other solvent. It refers to the solution concentration.

molality

A fraction of a solution expressed in moles of solute/kg of solvent.

mo·lal·i·ty

(mō-lal'i-tē)
Moles of solute per kilogram of solvent; the molarity is equal to mρ/(1 + mM), where m is the molality, ρ is the density of the solution, and M is the molar mass of the solute.
Compare: molarity

molality

Number of moles (see MOLE 2.) of solute in 1000 g of solvent.

molality

the number of MOLES of a solute present in a kilogram of pure solvent.

molality

the number of moles of a solute per kilogram of solvent.
References in periodicals archive ?
Problems of comparing blood glucose molality and molarity determined with an Omni, an EML 105 and an Ebio analyser.
The graphical representation of variations of refractive indices as a function of molality at different temperatures is shown in the Figure 5.
Molar refractivity of citric acid in water increases with increase in the molality of solution and decreases with an increase in the temperature.
The electromotive forces given in table 2 were computed from the smoothed values of E[degrees]" at round values of the molality.
Glucose permeates the erythrocyte membrane quickly via passive transport (facilitated by the erythrocyte glucose transporter); therefore, the molality of glucose (amount of glucose per unit mass of water) is identical in erythrocytes and plasma.
The molality results from the direct-reading sensor can be multiplied by a factor derived from the ratio of the water concentrations of calibrator and sample to yield the true glucose concentration.