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verifying Recommended EI dosing

Discussion in 'CO2 Enrichment' started by nicklfire, Mar 6, 2008.

  1. nicklfire

    nicklfire Member

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    A user posted this on my board and it was a bit over my head so asking your adivce on his post:

     
  2. Tom Barr

    Tom Barr Founder
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    I do not see any glaring errors.
    Making a stock solution is as easy as going to dosing calculator, see Chuck's for example.


    Regards,
    Tom Barr
     
  3. dkorbal

    dkorbal Junior Poster

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    This is my first time posting to this forum which I've find a great help. I am trying to understand EI, PPM, PMDD etc. The last time I did any of this was in college and we wont say how long ago that was. I have a question about your following formula.

    By using the formula for calculating PPM:

    x PPM = ( mass of KNO3 / mass of water ) * 10^6
    x PPM = (40g / 500g) * 10 ^ 6 note: 1mL of water = 1g
    x = 80000ppm

    Isn't PPM defined as One part in 10^6 parts which would mean:
    x PPM = ( mass of KNO3 / (mass of water + mass of KNO3) = 10^6
    x PPM = ( 40g / 540g) = 10^6
    x = 74074 ppm

    I apologize for my confusion and correct me if i'm wrong because I am really trying to get this straight in my head.

    dkorbal
     
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