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: Ionization Problem

  1. Feb 16, 2009 #1
    1. The problem statement, all variables and given/known data

    A 0.085 M aqueous solution of a weak base is known to be 1.6 percent ionized. Calculate the pH of the solution.

    2. Relevant equations

    %Ionization= ([OH-] derived from base/ initial [base]) x 100%

    3. The attempt at a solution

    %Ionization= ([OH-] derived from base/ initial [base]) x 100%

    pH+pOH=14, 14-0.866=13.134...

    I normally do these without a problem, so I'm assuming it's a stupid mistake. The problem clearly says weak base...Where am I going wrong?

  2. jcsd
  3. Feb 17, 2009 #2


    User Avatar

    Staff: Mentor

    Check your math. You are right - it is a stupid mistake. Not that uncommon though.
  4. Feb 17, 2009 #3
    Hahaha, I even double checked it the other night. How lame. Thanks:redface:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook