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Homework Help: Calculating Radionuclide (243 Am3+) in a solution

  1. Apr 28, 2017 #1
    1. The problem statement, all variables and given/known data
    There is an UV-Visible experiment on 243Am3+ in 1 M HClO4 with a 1 cm path length
    cuvette and a total volume of 2.5 mL. The absorbance near 500 nm is 0.35. What is the solution concentration of Am

    2. Relevant equations
    A = ebC

    A = absorbance
    b = path length
    C = concentration
    e = molar absorptivity

    The attempt at a solution
    I first calculated the molar absorptivity using the absorbance, concentration of 1M HCLO4 and the path length and right off the bat, I knew that this method is wrong (e=0.35, same as the abs reading). I then use the A=ebC equation, but then again this method is wrong because it gave me the same concentration of Am to the concentration of HCLO4. Please help guiding me through this problem.
  2. jcsd
  3. Apr 29, 2017 #2


    User Avatar

    Staff: Mentor

    There is not enough information to solve the problem as stated.
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