Question

if the ph of hc3h5o2 is 6.2 and the ka = 3.34 x 10^-5, what is the equilibrium concentration of C3H5O2?

Any ideas how to solve this?

Answer 1

Do you have any approaches/ideas?

Answer 2

You can do it in 2 ways, (1) use an equilibrium expression (based on the dissociation of the acid) or you can (2) use the henderson-hasselbalch equation.