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Homework Help: Stuck on Change in pressure after reaction

  1. Jan 21, 2010 #1
    1. The problem statement, all variables and given/known data

    A tank is pressurized with 5.0 atm of N2 and 10.0 atm of H2. Ammonia (NH3) is formed. When the pressure finally remains constant, indicating that the reaction has proceeded as far as it will go, the partial pressure of ammonia is 3.2 atm. What is the total pressure in the tank assuming that neither the temperature nor the volume of the container have changed?

    2. Relevant equations


    3. The attempt at a solution

    The only equations I can think to use require moles or volumes, neither of which is given.
    I'm stuck, please help
  2. jcsd
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