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: Dilution and strength

  1. Feb 21, 2010 #1
    Is it right to say that a dilute acid is stronger than the same acid which has higher molarity?
    By Ostwald's dilution law I can say that dissociation degree for the dilute sample is more. So it is a better electrolyte. But I also find that pH for concentrated sample is appreciably more.
    Ka=(conc.)*alpha*alpha(for weak electrolytes)
    So [H+]=sqrt(Ka*conc.)
    Actually I can not stomach what I have heard-that a dilute acid is stronger than its concentrated counterpart. I have always thought the more concentrated the stronger it is.
  2. jcsd
  3. Feb 22, 2010 #2
    Hey! I'm very very sorry that I cannot help you with your problem but I was just wondering if you could help me out very quickly? I would like to post a question of my own but I'm having trouble finding out where to do so!
    So sorry for the unhelpful post, good luck though!! :)
  4. Feb 23, 2010 #3

    Never mind. Please check your Member Profile.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook