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Homework Help: How many moles of NH3 in the supplied solution0.2 M NH3 in 2 M Nh4NO3

  1. Sep 20, 2010 #1
    1. The problem statement, all variables and given/known data

    How many moles of NH3 are in 2ml of supplied solution: 0.2 M NH3 in 2 M Nh4NO3

    Ans to be given in mmol

    2. Relevant equations

    Concentration = mol/ L

    3. The attempt at a solution

    Ratio of NH3 : NH4NO3 = 1: 10

    2 / 11 = 0.182 ml

    0.2 mol/L * 1L/ 1000ml * 0.182 ml * 1000 = 0.0364 mmol
  2. jcsd
  3. Sep 20, 2010 #2
    I'm not sure why you're calculating the ratio of ammonia to ammonium salt, and then not using it? What's the 2/11 calculation for?
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