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Simple chemistry question! PLEASE?

  1. May 13, 2012 #1
    1. The problem statement, all variables and given/known data

    If you have 5 mL of Fe(NO3)3(aq) at a concentration of 0.200 mol/L

    How many moles of Fe ion do you have?

    3. The attempt at a solution

    Would it simply be (0.200) * (0.005) = answer

    or would you have to divide that answer by three since one Fe per three NO3?

  2. jcsd
  3. May 13, 2012 #2


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    Staff Emeritus
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    There is only ONE Fe3+ ion for each Fe(NO3)3(aq). I think that answers your question.
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