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# How to convert wppm to atoms/m^3 or similar

## How to convert wppm to atoms/m^3 or similar

(OP)
Hello,
I am struggling when trying to convert 1wppm of H2 into another unit (that is the concentration of hydrogen I receive).
I've found some information about ppm, but I'm not sure how to do the wppm (weight parts per million I assume) conversion.

### RE: How to convert wppm to atoms/m^3 or similar

weight parts per million is what I get. so 1 wppm is 2 lbs of H2 per 1000000 lbs of ?

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

### RE: How to convert wppm to atoms/m^3 or similar

WPPM - "weight parts per million" is a reasonable guess, since I'm pretty sure you don't mean "white people party music" or "windsor pacific property management".

"WPPM" is a measurement of concentration on a weight or volume basis. Parts per million by mass is equivalent to milligrams per liter (mg/L). Parts per million by volume is a common way to measure concentrations of gases.

The molarity of a solution is the number of moles of solute per liter of solution. The molar mass of any particle (atom, molecule, formula, or ion) is the sum of the average atomic masses of all atoms forming that particle. This is also known as molecular weight. The molar mass of an atom is its average atomic mass expressed in grams. The atomic mass of all atoms can be found in the periodic table. For dilute solutions, one part per million equals one mg/L. In most cases, the two are considered equal.

To convert from molarity to ppm, first determine the molar mass of a substance. For instance, hydrogen (H2) has a molar mass of 2x1.00794 = 2.01588. A solution with 1 M concentration would have 2.01588 g of hydrogen gas (H2) per 1 L of solution. As a gas, there would be 2.016 g of H2 in something with a total mass of one million (1E6) grams.

Converting energy to motion for more than half a century

### RE: How to convert wppm to atoms/m^3 or similar

Ander Azpi,

I recommend you Google "how to do unit conversions", and. then, research/study a while.

I like to put everything on one vertical line. I've also heard it called "train tracks". Take a look:

Notice, if you want to get to per unit volume ( /m3), you'll need some more information about the total mixture, like a density.

Good Luck,
Latexman

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