The weak acid, HA, is 0.1 % ionized in a 0.2 M solution. (a) What is the equilibrium constant for the dissociation of the acid (Ka)? (b) What is the pH of the solution
I worked this problem below earlier today. If you scrolled to see what chemistry problems were worked you would get your answer faster. This one was posted earlier as biochemist. url is here
https://www.jiskha.com/questions/1840756/weak-acid-ha-is-0-1-ionized-in-a-0-2-m-solution-a-what-is-the-equilibrium-constant