1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Ionic Strength help

  1. Sep 30, 2007 #1
    Ionic Strength....help

    I am taking Biochemistry. However, the prof talked about Inoic Strength in class.

    This is the example,

    u = 1/2 (Molarity) (ionic charge )^2

    Example... .10M CaCl2

    u = 1/2 (.10)(+2)^2 + (.20)(-1) ^2

    u = 1/2 ( .40 + .20 ) = .30

    I opened my Chemistry Textbook..i looked it up Ionic section but I dididn't see it..maybe it has a different name...

    My question is....where can I find more info and practice problems about Ionic Strength in Chemistry Textbook. I don't see any equatios like that at all.
  2. jcsd
  3. Sep 30, 2007 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    I'm sure you will find Ionic Strength discussed in any standard Electrochemistry text (and possibly in a Physical Chemistry text). This is an useful concept for understanding screening of charge in an electrolyte.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook