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Kinetics homework help

  1. May 25, 2007 #1
    Hi everyone

    I need some help with this problem -

    The first order rate constant for the decomposition of N2O5 at 70 degrees celsius is 6.82x10-3 s-1

    2N2O5 -> 4NO2 +O2

    Suppose we start with 25 mmol of N2O5 in a volume of 2L. How many mmol of N2O5 will remain after 2.5 min?

    I'm not sure about what formula I should be using for this. Any help would be appreciated :)
  2. jcsd
  3. May 25, 2007 #2
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