mole fraction


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mole fraction

[′mōl ‚frak·shən]
(chemistry)
The ratio of the number of moles of a substance in a mixture or solution to the total number of moles of all the components in the mixture or solution.
References in periodicals archive ?
A Lippmann phase diagram for the ([Ba.sub.x][Sr.sub.1-x])HAs[O.sub.4] x [H.sub.2]O solid solution is a plot of the solidus and solutus as log [summation][[PI].sub.SS] on the ordinate versus two superimposed aqueous and solid phase mole fraction scales on the abscissa.
Analysis of (7)--(10) shows that the increase of the mass fraction of metal leads to the increase in the parameter [PHI] and the decrease in the parameter [theta] and the increase of the mole fraction of oxidizer [[alpha].sub.0] decreases both [PHI] and [theta].
It is shown that the addition of barium mole fraction leads to the increase of maximum absorbance or minimum transmittance peaks on the same light spectrum, that is, green.
The mole fraction of N-acetylglucosamine residues ([F.sub.A]) was determined using potentiometric titration, as described by Raymond et al.
The fact that [log.sub.10][K.sub.2] values are observed to increase as the mole fraction of ethanol is increased in all media investigated supports that dipolar ion is predominant in water-ethanol mixtures as well as in water.
Figure 1(c) shows the multistacking heterostructure of i-layer, starting with pure crystalline Si and increase the Ge mole fraction by 25% until pure Ge layer is reached.
where [x.sub.i] is the mole fraction of component i in the mixture and [[kappa].sup.0.sub.i] is the isothermal compressibility of the pure component i.
yi - Mole fraction of each component in the gas mixture
From Figure 2 it can be seen that the thermal expansion coefficient increases as the ZnO content added from 0.10 mole fraction to 0.40 mole fraction.
A relationship for mole fraction [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] of methane in water is derived as a function of temperature (T in K) and pressure (P in MPa):
The variation of the mole fraction composition of the different monomers in the copolymer with time (peak area vs t) can be obtained by sampling at the different time intervals of 1.5, 35, 60, 90, and 120 min.
Also, general correlations for mole fraction, critical temperature and acentric factor for these pseudocomponenets have been obtain for all the wells investigated in this study.