how to calculate ionization of a weak acid. given pka 4.797, pH 4.756 . thanks!

Question

how to calculate ionization of a weak acid.  given pka 4.797, pH 4.756  .  thanks!

joannablackwelder · Answer

pKa = -log Ka 
where Ka is the ionization constant

joannablackwelder · Answer

Do you know how to solve for Ka?

aaronq · Answer

you can also use the henderson-hasselbalch equation for a shortcut

pH=pKa+log[A-]/[HA]

anonymous · Answer

yes i understand how to get the ka and ph concentrations, but i need to find out how to set up the values to get the ionization percent

joannablackwelder · Answer

Ahh, I see. I don't remember how to do it exactly and don't have time to remind myself at the moment. I did find an example that you may find helpful. http://answers.yahoo.com/question/index?qid=20091222061041AAWzvKL

joannablackwelder · Answer

Happy studies!