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Homework Help: Simulating a pool system - concentrations help

  1. Nov 5, 2012 #1
    1. The problem statement, all variables and given/known data
    For part of my course I have to simulate a pool. In the pool there will be a 40ppm solution of cyanuric acid, a 1ppm solution of chlorine (sodium hypochlorite) and a buffer (i have no idea of the compound so its moot trying to figure it out)
    I have been given a figure of 125g/L of availible chlorine. The question is how do i incorporate this into my concentration needed; but more importantly, is my volume of chlorine correct for the dilution?
    (C1 and V2 are 1 mole and 1000mg/L respectively

    2. Relevant equations

    3. The attempt at a solution[/]
    1ppm of sodium hypochlorite in moles is .001/74.442 =1.34 x 10^-5 approx
    thus V1= 1.34 x 10^-5 x 1000
    thus V1 = 0.0134mL
    Last edited: Nov 5, 2012
  2. jcsd
  3. Nov 5, 2012 #2
    1 ppm = 1 mg/L
    Given 125 ppm
    Wanted to be reduced to 1 ppm
    You have no data of the amount of Chlorine, e.g. 1L, you have and the amount of water you need in the pool...
  4. Nov 5, 2012 #3
    I 500ml of chlorine. I need 1 litre of water. I just need to make a stock solution of 1ppm of chlorine to add to 1 litre of distilled water.
  5. Nov 5, 2012 #4


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    Staff: Mentor

    We are still waiting for a first comprehensible post in the thread.
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