molal


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molal

 (m) [mo´lal]
containing one mole of solute per kilogram of solvent. (See also molar1.)

mo·lal

(mō'lăl), Do not confuse this word with molar.
Denoting 1 mol of solute dissolved in 1000 g of solvent; such solutions provide a definite ratio of solute to solvent molecules. Compare: molar (4).

molal

adjective Referring to the number of moles of solute/kg of solvent in a solution.

mo·lal

(mō'lăl)
Denoting 1 mol of solute dissolved in 1000 g of solvent; such solutions provide a definite ratio of solute to solvent molecules.
Compare: molar (4)
References in periodicals archive ?
[Z.sub.n]: is the molal percentage of each carbon number (Cn), mol%,
Y' = molal humidity ([kgmol.sub.(water)]/[kgmol.sub.(air)])
Use the obtained freezing point depression to estimate the molal concentration of sodium chloride in the unknown solution.
Helgeson, "SUPCRT92: A software package for calculating the standard molal thermodynamic properties of minerals, gases, aqueous species, and reactions from 1 to 5000 bar and 0 to 1000[degrees]C," Computers & Geosciences, vol.
Betz, "Uranium in geologic fluids: estimates of standard partial molal properties, oxidation potentials, and hydrolysis constants at high temperatures and pressures," Geochimica et Cosmochimica Acta, vol.
Entropy in binary liquid mixtures; partial molal entropy in dilute solutions; structure and thermodynamics in aqueous electrolytes, J.
Shock, "Aldehydes in hydrothermal solution: Standard partial molal thermodynamic properties and relative stabilities at high temperatures and pressures," Geochimica et Cosmochimica Acta, vol.
where c is the molal concentration of aqueous components, [gamma] is the thermodynamic activity coefficient, K is the equilibrium constant, subscripts i and j mean the index of the aqueous complexes and basis species, respectively, the subscript i also means the ith reaction to composing the ith aqueous complexes, is the stoichiometric coefficient of jth basis species in the ith reaction, and Nc is the total number of basis species.
where [[mu].sup.AQ(0).sub.i] is the standard chemical potential of species i in an ideal aqueous solution with a hypothetical unit molality [8]; [m.sub.sol] is the molality (in mole/Kg water, molal for short hereafter) of salt in the aqueous phase; [N.sub.w] is the mole number of 1kg water (55.508); [x.sub.i] is the mole fraction of species i dissolved in the aqueous phase; at is activity of component i in aqueous phase; and y is activity coefficient of component i.
Behavior in aqueous sodium nitrate solutions; 25-300[degrees]C, 0-6 molal," Geochimica et Cosmochimica Acta, vol.