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Chemical kinetics

  1. Dec 17, 2013 #1
    1. The problem statement, all variables and given/known data



    2. Relevant equations


    ln[A]=-kt+ln[A]0
    3. The attempt at a solution
    In this equation,is it necessary to have [A] to be the concentration?
    If there is the mass provided only,can I just subsitute [A]=mass?

    Sorry for my poor english
     
  2. jcsd
  3. Dec 17, 2013 #2

    Borek

    User Avatar

    Staff: Mentor

    It is about concentration. However, for a constant volume (and taking into account molar mass is constant for a given substance) you can be able to factor them out into k constant. That is just a simple math.
     
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