Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Removing Pb from water

  1. Nov 14, 2007 #1
    [SOLVED] Removing Pb from water

    Could anyone get me going with this?
  2. jcsd
  3. Nov 14, 2007 #2
    Ksp=[Pb2+][Cl-]^2 by definition.

    You are given the KSP and Pb2+ values, simply find the concentration of Cl-. You will notice that you will need a LOT of salt to do this, and creating highly saline environments in water sources kills a lot of plants and wildlife.
  4. Nov 15, 2007 #3
    Wow, so it is that easy. Thank you very much gravenewworld!:smile:
  5. Nov 15, 2007 #4
    Ok, however don't do it with hot water, or you'll kill people (PbCl2 is quite soluble in hot water).
    Furthermore, precipitating Pb with Cl- obviously take in solution the anion and this one can be not appropriate itself for a drinking water: NO3- for example.
    Last edited: Nov 15, 2007
  6. Nov 15, 2007 #5

    jim mcnamara

    User Avatar
    Science Advisor
    Gold Member

    This sounds more like Chemistry 101 homework than somebody with bad well water. But, you never know.
  7. Nov 15, 2007 #6
    Agree :approve:
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?