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Chemistry: A titration of ethylamine with HCl.

  1. Mar 18, 2012 #1
    1. The problem statement, all variables and given/known data
    For the titration of 50 mL of 0.150 M ethylamine (C2H5NH2), with 0.100 M HCl, find the pH :
    a) when 10 mL more of HCl has been added than is required
    b) when 75% of the required acid has been added


    2. Relevant equations
    Maybe Henderson Hasselbalch?: pH = pKa + log (base/acid)
    Ka = 2.34*10^-4

    3. The attempt at a solution
    I honestly do not know where to go with this.
     
    Last edited: Mar 18, 2012
  2. jcsd
  3. Mar 18, 2012 #2
    I managed to solve most of the problem by now, just can't get the two parts still in the question.
     
  4. Mar 19, 2012 #3

    Borek

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    Staff: Mentor

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