# Talk:Mass fraction (chemistry)

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## Merge from Percentage solution

Percentage solution and Mass fraction (chemistry) seem to deal with basically the same topic, and both are way too short to justify forking. A merge perhaps? Mikael Häggström (talk) 15:24, 21 March 2011 (UTC)

In general, merging two very short and similar articles makes sense. However, I see a problem here: "Mass fraction" is a well-defined quantity (see IUPAC definition), whereas "percentage solution" seems to be some imprecise term apparently used by biologists. I fear that merging the articles will only increase confusion. I make an alternative suggestion: Convert "percentage solution" into a disambiguation page with 3 entries:

RolfSander (talk) 19:40, 22 March 2011 (UTC)

## weight percent terminology

Claiming that the terms "weight percent" or "weight-weight percent" are obsolete ignores the fact that they are quite widely used in industry to refer to mass fraction. While I understand encouraging using true IUPAC nomenclature, the "obsolescence" of these terms should not be mis-represented — Preceding unsigned comment added by Ohenn (talkcontribs) 22:17, 10 February 2012 (UTC)

You're right, "obsolete" is wrong. It should be "deprecated".--RolfSander (talk) 13:03, 11 February 2012 (UTC)

## Mass percentage

Note that mass percentage (also called mass percent) is not the same as mass fraction. They differ by a factor of 100, see "Related quantities".

Regarding the improper name percent concentration, to add to the confusion, take a look at percentage solution.--RolfSander (talk) 07:54, 30 August 2012 (UTC)

## Mixing ratio

The mixing of two pure components can be expressed introducing the (mass)mixing ratio of them ${\displaystyle r_{m}={\frac {m_{2}}{m_{1}}}}$. Then the mass fractions of the components will be:

${\displaystyle w_{1}={\frac {1}{1+r_{m}}}}$
${\displaystyle w_{2}={\frac {r_{m}}{1+r_{m}}}}$ — Preceding unsigned comment added by 82.137.8.113 (talk) 00:09, 12 August 2016 (UTC)

The realtion gets rather interesting or non-trivial starting with ternary mixtures.--82.137.8.113 (talk) 00:13, 12 August 2016 (UTC)