% to ppm

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% to ppm

Postby bkarl » Wed Mar 05, 2008 3:29 am

I have one solution that is 5.25% concentration - i need to dilute it to 100 ppm concentration - volume is not important - smaller the better - basically, how much of the 5.25% solution would I add to 100 ml water to make 100 ppm solution. Please help - my brain exploded! Thanks!
bkarl
 
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Re: % to ppm

Postby Guest » Wed Mar 05, 2008 5:35 am

bkarl wrote:I have one solution that is 5.25% concentration - i need to dilute it to 100 ppm concentration - volume is not important - smaller the better - basically, how much of the 5.25% solution would I add to 100 ml water to make 100 ppm solution. Please help - my brain exploded! Thanks!


5.25% is 52500 ppm; you need to dilute it 525:1. I doubt you can measure anything less than 1 mL with any accuracy. With a small graduate, I would measure out 1 ml, put it in a larger graduate and add water to dilute it to 525 mL.

If you can measure smaller amounts well, measure out 0.2 mL and dilute it to 105 mL
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