What is the pH of a solution prepared by adding 4.000 grams of NaOH to a 50.00 mL of a buffer that is 2.00 molar both in acetic acid and sodium acetate? (Assume final volume is still 50.00 mL)
* chem - DrBob222, Wednesday, April 21, 2010 at 10:52pm
* chem - phil, Wednesday, April 21, 2010 at 10:59pm
i did .1 mols of AC- + .1 mols of OH gives me .2 mols of AC.
the .2 mols of AC reacts with water
AC- + H20---> OH- + HAC
so the M is .2/.05 L = 4M
to solve for the OH conc i did X^2 / 4 = 5.6 x 10^-10. and solving for the pH i get 9.675
is this right?
1 answer
Yes, it's right. I answered below at the original post.
3 answers