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# Mass Fraction

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Equation / Last modified by Administrator on 2017/06/20 15:03
`w_a = `

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Dasha.Mass Fraction

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6561df68-1ded-11e6-9770-bc764e2038f2

The** mass fraction** equation computes the ratio of mass substance A out of a total mixture of masses of two or more substances^{[2]}. Hypothetically, if a mixture contained two substances A and substance B, mass fraction of substance A will be a ratio of the mass of substance A out of the total combination of masses of substance A and B.

## Description

The **mass fraction** is calculated by

**wa=ma/ma+mb** ^{[2]}

where:

**m**is the mass of substance A in units of mass_{a}**m**is the mass of substance B in units of mass_{b}**w**is the mass fraction of substance A_{a}

## Related Topics

- Mole fraction
- Molality
- Molarity
- Precent by mass

## Supplement Material

## References

[1]https://en.wikipedia.org/wiki/Mass_fraction_%28chemistry%29

[2]Whitten, et al. 10th Edition. Pp.98

This equation,

**Mass Fraction**, is listed in 3 Collections.