User:Milton Beychok/Sandbox: Difference between revisions
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The '''mole fraction''' is a measure of the concentration of a component substance in a mixture of substances. It is defined as the number of moles of a component substance of a mixture divided by the total number of moles of the mixture. It may be expressed as: | |||
:<math>x_\mathrm{a} = \frac{n_\mathrm{a}}{n_\mathrm{a} + n_\mathrm{b} + n_\mathrm{c} \ldots} = \frac{n_\mathrm{a}}{n_\mathrm{total}}</math> |
Revision as of 00:11, 3 September 2008
The mole fraction is a measure of the concentration of a component substance in a mixture of substances. It is defined as the number of moles of a component substance of a mixture divided by the total number of moles of the mixture. It may be expressed as: