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### Topic: ppm to mole conversion  (Read 98986 times)

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#### poochiram

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##### ppm to mole conversion
« on: November 21, 2004, 12:39:28 PM »
How to convert 37 ppm Mg into moles?

#### Mitch

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##### Re:ppm to mole conversion
« Reply #1 on: November 21, 2004, 04:11:31 PM »
Show that you have attempt the problem before posting.
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#### AWK

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##### Re:ppm to mole conversion
« Reply #2 on: November 22, 2004, 02:25:34 AM »
ppm is a concentration unit. It cannot be converted to amount of matter (moles) directly.
You can calculate moles of substance in solution (or mixture) of known volume or mass.
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#### kevins

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##### Re:ppm to mole conversion
« Reply #3 on: November 22, 2004, 09:27:48 AM »
poochiram:

ppm = part per million

I guess you have a aqueous solution contains 37 ppm Mg

37 ppm Mg solution = 37 milligram of Mg in 1 L water.

#### AWK

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##### Re:ppm to mole conversion
« Reply #4 on: November 22, 2004, 10:10:46 AM »
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#### Donaldson Tan

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##### Re:ppm to mole conversion
« Reply #5 on: December 26, 2004, 06:31:41 PM »
ppm is a mass fraction. it is similar to percentage where u multiply the fraction by 100%. In ppm case, u multiply by 1 million.

ppm of a solute = (mass of solute) / (mass of solvent) x 106

37ppm of Mg tells u every million kg of solvent corresponds to 37kg of Mg. Given this information, you should above to work out its molar concentration by converting the required mass to moles.
« Last Edit: December 26, 2004, 06:33:35 PM by geodome »
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